Wednesday, May 23, 2007

Dive 19: Drysuit Specialty

Date: Saturday, May 19, 2007, 12:18 PM
Location: Whytecliff Park, West Vancouver, BC
Visibility: 10-15ft
Temp: 47°F
Depth: 50-70ft
Duration: 0:41
Surface Interval: 1:39
Tank: Al80
Start Pressure: 3005psi
End Pressure: 560psi
Gear: Bare CD4, Aeris Atmos XT, Apollo Bio-Fins Blue, Aeris Elite T3
Weight: 30lbs

--

The biggest reason that I've always wanted a drysuit is that they are so much more convenient than wetsuits. Never having gotten cold in a wetsuit, even when I dove in the winter, the benefit for me is out of the water. In a wetsuit, you've got 7-14mm of neoprene sqeezed tightly over your body. It makes doffing, donning, and movement a lot more difficult. You remember Randy in his snow-suit from A Christmas Story? That's pretty much what it feels like in a wetsuit around these parts. Once you get out of the water, you have to contort and convulse yourself in order to strip down to your soaking wet skivvies. Then you must towel up and try to get warm. That's not so bad in July, but in February, it's pretty miserable. Also, regardless of the time of year, the only thing worse than putting a wetsuit on is putting a wet wetsuit on. You have to strip back down to your bathingsuit and pull, wrench, and stretch the cold, slimy suit over your bare skin. It's fairly miserable.

With a drysuit however, you've got excellent mobility out of the water. It's relatively loose fitting and quite comfortable. When you're ready to take it off, it's a quick duck out of the seals and then you just let the suit hang by its suspenders around your waist. You're already wearing your nice warm and dry athletic clothing. Put a toque on in the Winter, and you're set. Donning it for successive dives is just as simple a process.

So, after exiting the water and easily popping out of the top half, I let my suit hang by its suspenders and swapped out my tank for a new one. The sun had come out during our first dive and it was now shining brightly and warmly in a blue sky. Overall it was quite a pleasant experience. A far cry better than my previous wetsuit dives on the nicest of days.

The consession stand at the park had decided to stay closed this day. Gary was a little chuffed, apparently their hamburgers were delicious (to be fair though, the extra nitrogen in a diver's blood acts as a perfect condiment to almost any food). Fortunately I had brought a couple sandwiches and we split the two.

Naturally, as we were climbing the path and throughout our surface interval, Prospector Howard (see previous post) was laughing and joking, asking and answering, and rhuminating about a great many topics. Eventually we were ready for the second dive and had to wander away from him to discuss it.

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The second dive was going to be a fairly normal fun dive around the North slope at Wytecliff. It is a fairly steep sloping bottom/wall down to over 200ft, usually not one recommended for beginners, but since I did well with my buoyancy right off the bat, we decided we were both comfortable with it. We swam most of the way out to the point, and then descended to about 45 feet. I kept my BC deflated the entire dive, and managed my buoyancy with the suit. Gradually descending, we followed the wall/shelf/bottom around and looked at the little critters. I didn't have a light, so Gary clipped his backup on to me as a loaner. He was using his primary light, a canister HID-type device with an mini-nova output requiring somewhere in the order of 1.21 jiggawatts to power.

We saw several octopus dens, but I coudn't see their occupants. It's easy to spot an octopus den, the ground just outside is absolutely littered with pieces of crab shells. To me it looks rather like a white trash front lawn. I can only imagine what it would look like to a passing crab. The poor thing would be scuttling along the bottom with two eyes on the lookout for the various predators that share the seemingly universal taste for crab flesh. All of a sudden his legs would click something that just doesn't seem right. His scuttling would slow to a crawl, then stop. The crab would glance down at its feet and see nothing but crab shells. Bulging black eyes would slowly pan the scenery, and Crabby would realize he was in a mass graveyard. Everything in sight would be piles of shattered exoskeletons bearing resemblance to all the family members and friends he had ever known. Instincts would kick in. Claws akimbo, Crabby would make sideways flight from the charnel landscape. Capture would be swift. Death would not be. Crabby's last thoughts might linger on the question of when the parrot-like beak of his captor would finally find parts vital to consciousness.

While no octopus were spotted, there was plenty of life. Throughout the rocks were snapper, and I saw a baby ling about a foot and a half in lenght. We arrived at a Anenome Garden which was covered in 2-2.5ft white anenomes. There were also several very large orange sea pens upwards of 2.5ft tall. While looking at some brittle stars, I saw one of them move. I'd only ever imagined starfish velocity being measured in days, but the brittle positively scurried along the bottom. Its forward two arms were swept back as it squiggled allong with its other three arms, giving it the appearance of a squiddy from the Matrix movies.

The most interesting thing I saw on the dive was when I shined my light on one of the egg sized jelly-fish that were floating about. They had no tentacles, and had the appearance of completely colourless glass bulbs floating inert through the water. When I shined my light at it, I was amazed. Three ciliated lines down the center lit up with amazing iridescence. The colours were so bright and reflective, it looked like hundreds of tiny LEDs winking and changing colours. The rate of movement was quite quick, and I realized that the little jelly was working hard to go somewhere. As the flaggellae whipped, at first the colours pulsed through all the reds and orange of the spectrum, then when I shifted the light, it was all colours brighter and more vibrant than any rainbow I'd ever seen. It was really remarkable, and has given me a much stronger desire to spend more time looking closely at the life in our waters, rather than glossing over the 'boring' stuff.

We bottomed out at 70ft in a somewhat chilly 8°C (47°F). I felt a little cold, as I was only wearing a very thin layer and had little air in my suit, but was warmer than I'd been when hitting those depths last July in a wetsuit. As we progressed on our dive back into more shallow depths, Gary took me over hill and dale testing out my buoyancy. I didn't have any problems and felt quite comfortable throughout. When we got back near shore, Gary demonstrated, then had me perform a hovering spin in each direction using helicopter kicks. I'd often heard that this is impossible with split-fins, but I accomplished it without losing my buoyancy or drifting off in any direction. I felt a bit awkward, and definitely need more practice, but for my first time trying, I was impressed at the helicopter kick's effectiveness.

We ascended as we did on the first dive of the day. Again, I was a little too light and had to have my suit sqeezing nicely to maintain neutral, but we gradually surfaced under control. Topside I remarked at what a pleasant dive it was. Gary again said that I did surprisingly well, and that he was impressed to see me adding and venting quite naturally throughout the undulating dive. I noted that I seemed to be venting a little more than I wanted, and subsequently was venting and adding fairly often. We agreed that I just needed to practice and get used to my suit.

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Overall the second dive was surprisingly normal. I didn't feel awkward in the suit, and had sorted out my equipment kinks. I was very pleased that I was able to concentrate on the dive rather than the physical aspect of diving. After these dives, I'm confident that I have the skills required to dive dry, and look forward to more practice.

We trudged back up the incline toward the vehicles and broke down our gear. Howard was there and we heard all about the other classes that were going on that day, and all about the classes he has taken and planned to take. He enquired about the Rescue Diver course, and Gary mentioned that Howard could call Ocean Quest to sign up for it. Howard took to this idea immediately and proclaimed that he'd only be interested if Gary, who had managed to sneak in about five sentences during the whole day, was the one teaching the course. Gary was a fine instructor, and Howard's instincts must have picked up on this, becuase without having seen him in the water, he repeated the proclimation several more times before we drove off.

Edit: I dropped into Ocean Quest a couple weeks after this dive and Gary was there along with Todd (manager and instructor whom I'd met a couple times before when looking into suits). I jokingly mentioned Prospector Howard, and both of them got pained expressions. Aparently he'd been in on the previous Sunday and chatted up the gang for quite some time. It was 45 minutes after closing before Todd was able to shoo him away. No word yet as to whether he's signed up for the Rescue course.

Gary and I managed to finish up our paperwork while Howard was on the phone lining up his buddy for what was now going to be a night dive. I got my temporary drysuit diver card, so that I could now rent a drysuit if I ever needed. Gary mentioned that I should think about the Rescue Diver course, as it was both highly informative, and a total blast to do the practical portion of the course. He explained that it was not merely diving-specific recovery and first aid (which I'd find valuable), but the course also gets you thinking about prevention of issues and how to spot problems that other divers may be having before they become serious. I've heard nothing but high praise for the Rescue course, with many people reiterating how much fun the weekend of the practical dives is, so I'm thinking about signing up for the next one.

Overall with the Drysuit specialty, I'd wished that I'd gone the mentorship route. I know that far too much of my money went towards the plastic card from PADI, but overall I had a thoroughly enjoyable experience, and felt the training I got from Gary was well worth the money. I look forward to diving with him or others from Ocean Quest again.

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Dive 18: Drysuit Specialty

Date: Saturday, May 19, 2007, 10:02 AM
Location: Whytecliff Park, West Vancouver, BC
Visibility: 10-15ft
Temp: 48°F
Depth: 20-57ft
Duration: 0:36
Tank: Al80
Start Pressure: 2860psi
End Pressure: 780psi
Gear: Bare CD4, Aeris Atmos XT, Apollo Bio-Fins Blue, Aeris Elite T3
Weight: 30lbs

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Wow, first time getting all my new gear wet! I'd bought most of it in August, but then I got sent to Vegas for work. I've heard that Lake Mead looks a whole lot like the rest of the land around Vegas, only wetter. Not exactly worth the pain and expense of draggin all my gear down there. So, a combination of circumstances led to me not taking my PADI Drysuit Specialty until this weekend.

I signed up for the DS course from Ocean Quest, and I got hooked up with Gary my instructor. It was just the two of us at Whytecliff, but there were a few other classes going on. We went through my knowledge review, and discussed the plan of the skills we were going to practice.

The wether was pretty nasty as we were gearing up, it was alternately spitting then poring down rain. I was very glad to get into the suit, once in I was perfectly comfortable. The CD4 is pretty streamlined on me and I've got good mobility.

Before Gary arrived, and off and on throughout the site briefing and gearing up (throughout the day really), Gary and I became familliar with Prospector Howard and his extended circle of acquaintances. I don't know his real name, but if you've ever seen Treasure of the Sierra Madre, he was a modern-day reincarnation of Walter Hudson's character. Howard had a whole lot to say about a whole range of topics. He often couldn't get a word in edgewise between the rest of what he was saying, and would have to interrupt himself only to pick right back up with what he was saying after his tangent. I guess from lack of companionship, you just save up your words and when you meet fellow explorers they just keep spilling out. When he wasn't talking towards us, he was talking to the bluetooth earset on his phone.

Howard had a bit of a hard-luck story that day, his buddy was caught by the police with no insurance on his pickup, because his wife cancelled it as part of a messy divorce (that's the super-abridged version, can you only imagine the detail to which I know of Howard's friend's marriage?). As a result, howard was without buddy, and looking. Naturally you can't buddy up with a class, and he didn't ask. Prospectors may be quirky, but they're nice folk and know the ropes. He had a lead on a buddy coming in later in the day, so he was just wandering around chatting at people between dives. Anyway I digress.

--

On the dive itself I felt less coordinated than I have ever felt in the water. It wasn't much of a surprise, with everything being brand new to me (and learning to use a drysuit), but I sure felt awkward. My computer wasn't on right, the fins needed tightening, and I think I may have slightly too large boots for my suit. I was mostly concentrating on the mechanics of diving, not the dive itself.

We descended to about 20 feet and levelled off without crashing to the bottom. This was met with some applause. After I told Gary that I'd only had 17 dives under my belt in 12 years, and the last cold-water dive was over 10 months ago, I think he was expecting an Ed Harris landing á la The Abyss:

TOUCHDOWN

At the bottom we went through some buoyancy drills. These went well, I've always had pretty decent buoyuancy and the DS didn't affect that much. Actually, he had me perform a fin pivot for a minute, and I was having real trouble with it, I think it was mostly due to the fact that there was a slight curent coming at my broadside, but it just wasn't working for me. I could hover with good trim 2ft off the bottom, but I coudln't do the pivot well. We talked about it afterward and agreed that it was a little backwards, but that since I could hover, that was what mattered.

Gary then had me remove my drysuit inflator hose (whip) and reattach. I had a hell of a time reattaching the whip. It seemed like it took me about 5 minutes, but was probably only 60-90 seconds. It's silly to feel embarrassed about a lack of skill while you're taking the course to learn the skill, but I did feel that way a bit. Gary hovered patiently as I worked out what was going wrong. I told myself to be patient and figure it out.

The issue was mostly due to the rental whip; the catch wouldn't retract if you pulled on one tab, you had you pull simultaneously on both tabs to insert it into the inflator valve (the whip that came with my DS isn't like this). For kicks sometime, you should try pulling backwards on the two tabs while gripping the hose with the palm of a 5mm neoprene glove and pushing it perfectly aligned over the valve stem, which really doesn't have room for all those fingers and neoprene. All while not really being able to see much. Once I figured out I needed to pull both tabs I got it fairly quickly. Gary had me do it again, and this time the process took me about 5 seconds. Hooray for learning!

We swam around a bit and did a couple more fin pivot and hovering tests, then we got to the fun stuff. A common problem in a drysuit is getting too much air trapped in your feet. Since the exhaust valve is either on your shoulder or your forearm like mine, this can be a problem where it's difficult to get upright. Of course if you start to ascend, the air volume is under less pressure and increases, exacerbating the problem and accellerating your ascent. It's not all that uncommon in a drysuit class to see divers cork to the surface with their baloon feet sticking straight up. To prevent this, you learn a variety of techniques to roll out of the feet-up position. Gary demonstrated, then had me face head down and add some air to the suit until I was positively buoyant, then roll out of the position and vent the excess gas. We did this a few times with the various techniques. Finally he had me turn upside-down and held me down, while holding my inflator down until I was very buoyant. He let me go and I started quickly towards the surface. I rolled out of the position and got my cuff dump up so that the gas could vent. I raised about 7 feet or so in total then dropped back down to his level. It was pretty fun, and I got another round of applause for not breaching.

The rest of the dive we puttered around looking at the beautifully sandy bottom in the middle of Whytecliff. Actually there's quite a bit of life even in the mud, but I was mostly concentrating on my gear and keeping my suit inflated. We did a somewhat undulating dive profile to test out my buoyancy, made it down to 57ft acording to my trusty T3, then headed back towards shore. I felt a little light diving with only 30lbs, and near the end of the dive had to keep my suit pretty tight to maintain neutral. When we were ready to ascend from about 20 ft, Gary indicated that we were going to ascend slowly facing each other in a trim, skydive-like position. We stopped and hung at about 6ft for a short time, at this point I had pretty much no air in my suit and it was quite snug. We raised the last few feet and we were topside.

The first thing Gary said was that I was a natural, and that he was impressed at how much better I did than he was expecting. I was a little frustrated overall with the dive, because I felt awkward almost from start to finish, but I knew that was to be expected. I find that I learn quite a bit semi-conciously. It's like my body needs time to think about the skills it's learning, and after coming back to something, I'm better without having practiced in between. So, I figured the second dive would be better.

Overall the dive was productive, I now had some practical experience to tie to the theory I'd been compiling for months (years) about diving dry. We headed back up the path back towards the parking lot for lunch and a surface interval complete with a live rendition of the audiobook Howard's Thoughts.

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Saturday, August 19, 2006

Dive 17: La Rose Wreck

Site: La Rose Wreck, Grand Bahama Island
Date: August 5th, 2006
Operator: Fred Riger, Grand Bahama Scuba

The Final dive of the trip...


Depth: 55-75ft
Duration: 25min

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Dive 16: It's All About the Angle of Penetration

Site: Sea Star II Wreck, Grand Bahama Island
Date: August 5th, 2006
Operator: Fred Riger, Grand Bahama Scuba

Penetration of the stern section of the Sea Star II


Depth: 65-85ft

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Dive 15: Farewell and Adieu to You Fair Spanish Ladies

Site: Shark Junction, Grand Bahama Island
Date: August 4th, 2006
Operator: Fred Riger, Grand Bahama Scuba

Two Black-Tip Caribbean Reef Sharks 4.5 and 5.5 feet in length. One remora 2.5 feet in length.

Off in the distance a Manta Ray about 5-7 foot wingspan.


Depth: 50ft

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Dive 14: First Warm Water Dive

Site: Tunnels, Grand Bahama Island
Date: August 4th, 2006
Operator: Fred Riger, Grand Bahama Scuba

My first ever warm water dive. Really neat swim-throughs in the reef.

Depth: 65-75ft

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Dive 13: Low-vis Search Pattern Practice

Site: The Granthall, Porteau Cove Provincial Park, Howe Sound, British Columbia
Date: July 1st, 2006
Operator: Great Pacific Diving

Got lost following Jer, found our way back to The Granthall. Saw an itty bitty octopus in a crack while we were 'exploring'. My expert navigation found us surface almost in the boat launch.

Depth: 65-75ft

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Dive 12: A Very Long Surface Interval

Site: The Granthall, Porteau Cove Provincial Park, Howe Sound British Columbia
Date: July 1st, 2006
Operator: Great Pacific Diving

My first dive after 7 years out of the water, and only the third dive in 11 years. Descended to The Granthall and explored around. I think I've gotten the diving bug again.

Buddies: Jer, Ian, with Edan and Andy kicking about.
Depth: 45-75ft

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Dive 11: Diving with Julia

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Saw a seal at depth.

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Dive 10: Diving with Julia

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Dive 9: Advanced Open Water Certification: Night Dive

Date: Tuesday, June 6th, 1995 7:30PM
Location: Cates Park, North Vancouver, BC
Visibility: 10-15ft
Depth: 45-50ft
Duration: ~25min
Surface Interval: 53 hours
Tank: Al80

--

This was the Night dive part of the AOW certification. It was done in the early evening in Summer, so wasn't much of a night dive. At depth though there was almost no light from the surface, and the affect on the dive experience was very interesting. There wasn't a whole lot to see in the bay part of Cates Park, a few concrete objects that didn't yet qualify as artificial reefs. However we did find a sea pen about 18 inches tall that my instructor had us gather around. She got us to point our lights behind us as she strummed her fingers up along its centre. As her fingers stroked the ribbing, it light up with shocks of bioluminescence. It was really remarkable. Apparently if it's really dark you'll see bioluminescence when waving your hand through the water, but because the sea pen is effectively a filter for the plankton, it was super-concentrated, and visible in the twilight we were in.

We puttered around for a little while. I was young and new to diving, so I stuck like a remora right off my instructor's left shoulder. She later said that I was an excellent buddy, she never had to worry about where I was, she just had to shoulder check, and I was giving her the ok salute. Overall it was a pleasant dive, until it came time to ascend. As we ascended slowly up the beach from around 40 feet I developed a problem equalizing. I hadn't had any trouble equalizing on the way down, but during the dive my sinuses must have become blocked. It started out like a painful sinus cold, but quickly progressed into a painful pressure on the inside of one of my teeth.

A few more feet of ascension and it was agony. It was like an ice-pick being pressed into the raw nerve. I tapped my instructor on the shoulder and tried to signal that I had problems. I gave the hand rocking back and forth 'things are a little uneasy' signal, but was quite calm. She wasn't sure what was happening so I signaled again and pointed at my tooth. It's not an easy charade to indicate that you are having equalization problems with your tooth in darkness while wearing 25lbs of neoprene and holding a regulator in your mouth. I kept wiggling my jaw and ears, trying to relieve the agony when I heard a super high-pitched squeal as the air equalized out of my sinuses. I can tell you from experience that the best part of torture is when it stops. The feeling was incredible, and I indicated we could proceed up to shore.

However, over the next 10ft of ascension, my painless bliss gradually turned into dentistry from hell once again. Again I tried to explain the problem to my instructor, and had her slow down. Mystified, she waited patiently until I said we could proceed. After more contortions, I heard the squeal of joy once again, and we continued up, only to have to repeat the entire process one final time.

I was quite glad to finally break the surface. At this point I had the pleasure of experiencing the effects of forced gradual decompression of blocked sinuses on the human nasal-mucal membrane. These effects result in impressively large amounts of mucous seeping out of the nose and eyes, enough to quarter-fill a mask and escape out the skirt onto the face and hood. Quite pleasant really. Think Peter Venkman post interaction with vapourous apparition.

After cleaning off, I explained to my instructor what I was trying to communicate. She had no idea, though knew that I was calm and breathing fine, so there was no serious concern. Overall it was an exceedingly unpleasant end to an otherwise enjoyable dive.

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Dive 8: Advanced Open Water Certification

Date: Sunday, June 4th, 1995
Location: Georgia Straight, BC
Visibility: 20-30ft
Depth: 45-55ft
Duration: ~25min
Surface Interval: 1 hour
Tank: Al80

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Dive 7: Advanced Open Water Certification: Deep Dive

Date: Sunday, June 4th, 1995
Location: Georgia Straight, BC
Visibility: 20-30ft
Depth: 100ft
Duration: ~14min
Surface Interval: 21 hours
Tank: Al80

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This was the Deep dive part of the AOW certification. I was 15 at the time and had never had any sort of buzz at that point. I was concentrating very hard on the dive in order to help prepare for narcosis. We settled down to the bottom in the near stygian darkness of the Georgia Straight and my instructor started pulling stuff out of her mesh bag. First she handed a tennis ball to us one at a time. I remember thinking it was neat at how crushed it was. Next she pulled an orange out, and cut a slice out of it. She offered it to us one at a time, and I remember wondering what I was supposed to do with it. She made encouraging 'go ahead' motions to me, but I just looked back at her a little confused as to what she was getting at. She then proceeded to offer it to the next student.

She hadn't told us to expect the show-and-tell, but after the dive on the boat she explained it was a sort of test to see if we were narced. She claimed that she'd had people wanting to take a bite of the orange at depth. I'm not too sure of the safety of this, but I never noticed any sort of feeling other than perhaps wondering if she was narced.

We spent only a few short moments at 100ft, and then gradually followed the sloping bottom up to the surface. Because we were diving square profiles, all time at depth was considered to be at 100ft, so we didn't spend much time at shallow depths.

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Dive 6: Advanced Open Water Certification!

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Dive 5: Advanced Open Water Certification!

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Dive 4: Open Water Certification!

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Dive 3: Open Water Certification!

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Dive 2: Open Water Certification!

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Dive 1: Open Water Certification!

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