Tuesday 28 May 2013

Try Dive (Guest Writer)

I convinced my wife Jenny to go on a try dive! Here is here guest spot on the BLog Book!

--Tony.

"I was finally encouraged to do a try dive with Tiverton BSAC. Although I'm not afraid of water I was concerned about being underwater with the breathing apparatus. When I got to Tiverton swimming pool, Linda - my instructor for the evening- put my mind at ease by reassuring me that she would go at whatever pace I felt happy with. Something to rememberr is to take some socks to wear under your flippers fins and also a t-shirt to wear under your jacket and tank.

"Linda went through safety first which included hand signals to use, as surprisingly you can't talk underwater ;-) We then put our equipment on in the pool. We started off nice and slowly, learning how to use the equipment and how to breath with the mouthpiece. Then once I was comfortable we went under for the first time - not too deep, just enough for our heads to be under the water.

"Learning to breathe under the water through the mouthpiece was a strange experience, it felt similar to gas and air (entonox) which I had when giving birth earlier this year. I quickly got used to it though I found I wanted to try the next step rather quickly! We sunk ourselves using the valves on the jacket and did a length along the bottom of the pool. This was when hand signals became useful. My fins kept slipping off the back of my feet, so I had to signal to Linda for her to help put them back on. This wasn't difficult at all, as long as you remember to stay calm!

"I got to the point where I was happy to swim on my own, and although Linda stayed with me we felt that she no longer needed to hold my hand. 

"When we got out I couldn't stop smiling! Considering I wasn't too sure to begin with, I know I can't wait for my husband's membership to come up for renewal so we can sign up for membership as joint members, and then I can start my lessons! I can't wait!"

--Jenny


Sunday 19 May 2013

Cawsand, Cornwall

Cawsand is a small village across the bay from Plymouth, just across the border into Cornwall. The bay is well sheltered from prevailing winds and the bed is between 10m and 15m in depth, with some spots going down to 20m.

Date: Sunday 19th May 2013          Dive Number: 167
Place: Cawsand, Kernow                Buddies: Dave and Linda 
Time Down: 1200                           Dive Time: 23:00
Time Up: 1230                                 Max Depth: 13.0m
Visibility: 5m                                   Water Speed: 1.2kn
Weather: CAVOK                            Entry: Boat (Humber)

(c) Google


A small contingent of Tiverton Divers; myself, Linda, Dave, David, Elizabeth and our cox; Captain "Dragged-Along-By-Linda-To-Drive-The-Boat" Mike Brice, met at our initial pre-trip rendez-vous (Andy's house). We drove down in a convoy to Plymouth where our boat "Humber" is being kept. Humber is a RHIB or RIB, which is an acronym for Rigid Hulled Inflatable Boat. In previous years we had a van which could carry half a dozen divers and equipment as well as towing the boat. Unfortunately the van has seen better days and needed a substantial degree of work required to keep it running, so the decision was made to keep the boat in Plymouth docks which would make weekly logistics easier at the expense of restricting our options for launching exclusively to Plymouth. At the moment we are all agreed there is enough variety of diving opportunities within reasonable distance of the docks to keep members keen!

Arriving at the docks Dave noted that Humber had been inexplicably moved - which was rather suspicious. The boat was all there and all in working order though, that is after a bit of a jump start from our portable battery. The tractor arrived almost immediately to take us to the slipway which was very efficient, but we weren't ready so reluctantly sent it away to come back later! For Linda and I it was the first dive of the year, our drysuits had become rather stiff in storage and the latex seals had turned plastic. We wrestled ourselves into our diving skins and loaded the boat trying not to forget vital pieces of diving equipment and waited for the tractor driver to return (he took his time, possibly as punishment for us making him wait!).

flikr.com
We were soon motoring across the harbour, of which one of the more unusual sights was that of HMS Illustrious, one of the two aircraft carriers that the UK operates nowadays, which serve as helicopter carriers. We radioed the coastguard to let them know we were around, they took all our details including our planned dive depth and time which was quite a comprehensive approach! It took about twenty minutes to reach the dive site near Cawsand. David and Elizabeth were first buddy pair to go down, and after they had descended down their DSMB line Mike handed control of the Humber to me so I could get a bit of a refresher on my boat handling. The hydraulic steering was much harder than I remembered, otherwise I felt comfortable piloting our fine vessel and felt confident enough to pick up David and Elizabeth on ascent. The visibility was gradually declining as a weather front with thickening clouds and rain encroached from the east, but we were able to see Eddystone Lighthouse on the horizon. I handed control of Humber back to Mike, assisted the David and Elizabeth with de-kitting before we prepared to jump in the water for the next wave.

lighthouse-news.com
Linda, Dave and I were a buddy triple. Dave and I each had 220bar in 12l cylinders, and Linda had 180bar in a 10l cylinder. Basing the 'rule of thirds' on Linda's supply meant that after 600l of air had been drunk on the first half of the dive we would turn around to return the way we came, hopefully surfacing with 60bar still in Linda's cylinder. Poor Linda had a complication where the drysuit inflate was not working and was half bumping half crawling along the bottom of the bay, she had to maintain propulsion to gain some degree of momentum which also will have increased her breathing rate. Nevertheless we had a good 23 minute dive. There were lots of starfish, Dave and Linda were having a 'mine is bigger than yours' competition, which Linda won after she pointed out an immense starfish which could well have been the mothership. Linda also picked up a rather suspect object, not dissimilar to a rather large "Type Three" on the Bristol Stool Chart. Apparently it was a sea cucumber, which was rather lucky I thought as it could well have been an enourmous human poo. It was good to dive again, to feel the icy cold water stinging the sides of our faces and feeling that friendly trickle of water into our drysuits. UK diving really is a hobby only done by a unique slice of our population, we are sort of eccentric masochists.

We ascended, reboarded, dekitted and bumbled back home, with a quick buzz around Illustrious which we imagined were eyeing up our approach and possibly considering warning shots to ward us off. The one man on the deck waved a friendly wave back at us, so I am pleased to say that tensions between TivSAC and the RN have now been eased slightly. We refuelled the boat and returned it via tractor to her original resting place. I had to rush off quite sharpish due to a domestic emergency where my son had run into the flipper of a fibreglass charity turtle in Plymouth Aquarium, so my family and I followed his hospital check-over it with a belated post-dive trip to Pizza Hut to make it all better again. Aside from that little drama it has been a brilliant day, and from my viewpoint a good start to the diving season!

Personal Accumulated Time Underwater: 3 days, 8 hours and 11 minutes

Friday 10 May 2013

The Importance of Log Books

If you are one of these divers who are flush with cash (or rely on their credit card a little too much) you may be the proud owner of a swanky dive computer which records your dive to the n'th degree of accuracy - impressive dive profiles, undisputed accumulated time underwater, an unlimited space to write your account of the dive, you can even give your dive up to five stars.  

imperial tec dive


Aside from being a technophobe and unable to find the USB cable for my Suunto Vyper, I find a certain satisfaction from the discipline of writing my dive account after every dive in my red BSAC log book. I find an annotated picture or silly sketch is easier to remember than a written account, and they're also more fun to do and look back on. I am on my 5th red book, it feels good to carry my experience around in my hand. 


The red log books are also rather resilient. In my early days I accidently left a few choice items in my drysuit pocket and went for a dive in Wraysbury. I emerged from the water searching for my log book, only to wake to a sobering realisation my soggy logbook was sloshing around my drysuit pocket along with the electronic minibus keys, which had to be dried out in the compressor room (they worked after a while, which was a relief). I managed to pull my logbook out of my pocket intact and lovingly took it home, carefully separated the pages and left it on the radiator. In the end it was stained, but the writing on all pages was still readable. The Neptune motif on the front had worn away, only to be redrawn by one of my buddies as Bart Simpson. Even though I know now how sturdy these books are I'd still rather not risk it again though!  


Returning to the point. Computer logs are clearer and more accurate than hand written log books. I feel the benefits end there, as I believe that log books exceed computers in this capacity several ways:
  • Low maintenance, no printing, no cables, no electricity is required
  • The more dives you log, the more books you collect, the more impressive it looks
  • A certain nostalgia, especially for the early rustic log books
  • Easy to carry around your whole experience with you
  • More personal
  • You can't stamp a dive computer with the site logo
  • Your Buddy can't verify the log unless it's printed
  • More satisfying to fill out
  • Freestyle method of dive logging - pictures, diagrams, text, photos, there are no rules!
So keep your fancy computer logs, but also love your log books :-)


Thursday 2 May 2013

The Delights of UK Diving

No, I'm not being sarcastic!


Why spend all that money to dive in exotic locations when you can slip into the drink just miles from your very home? We have wrecks! We have marine life! We even have coral reefs! Yes, so the water is cold, but just think about the adventures you can have exploring the Scylla, the Kyarra or the U1195! What better feeling than stripping all your kit down at the end of a hard days diving and heading straight for a beer garden with your best diving mates, sipping a cool drink in the low summer sun and awaiting your mixed grill as you all gently fizz nitrogen from your bodies... 


Maybe you are unconvinced. Maybe the only way to dive is in the gin clear waters of the Indian Ocean, and after several hoursworth of warm diving peeling off that wetsuit and sipping a pina colada in a Mauritian beach hut, or on the sunny deck of a luxury liveaboard. Some may argue however that t is unsustainable as a hobby and you would have to be pretty loaded to be able to do enough diving to get properly qualified to Sports Diver or Dive Leader. The dry suit training may get a little sweaty as well!


I like to think of diving in the UK as 'character building'. The water can be cold, the fish are various shades of grey, and the coral pales in comparison to the tropics, but the challenge, adventure and camaraderie of UK diving is what keeps me coming back for more.