
PHILLIP E. GRAF - PADI ICE DIVING SCUBA INSTRUCTOR
David Ogle wrote:
Hi Omni Divers:
I found your page on the Web. I'm a journalist compiling an article on adventurous winter activities for the top selling men's magazine over here in the UK. I'd like to mention the courses that you run, could you help me out with the following questions?
That would be great.
Please let me know your postal address plus a phone number.
Boise, Idaho 83703-3230
208-345-1990
208-345-2415 fax
omnidive@omnidivers.com
What is the approximate temperature of the water you're diving in?
34 degrees F
Is it actually at freezing point,
No.
or is the clear water under the ice slightly warmer?
Yes, the particulate matter in the lake
during the winter freeze up tends to fall to the bottom, the wind on the lake
which can continually stir up the lake surface is no longer a factor and the
water tends to become very clear.
We use one line which is attached to the diver and is controlled by the tender
on the surface of the ice. In case a diver has a problem the tender can pull
the diver back to the hole and remove him/her.
We go down in buddy pairs with each having a line tender on the
surface. The instructor also uses a line with a tender.
One of the interesting things under the ice is the ice water interface. The
ice adjacent to the water tends to remind one of a large ice cube, with
bubbles trapped in the ice. The ice is smoother than the ice on the tenders
are walking on.
For fun we invert ourselves, standing upside down with our fins on the
bottom of the ice and signal the tenders to pull us in. The tenders pull
and we ride the ice in. It is like water skiing using fins,
just upside down, on the ice under the water instead of on top of the water
on skis.
How long does it take to cut the hole in the ice?
Depending on the size of the triangle we cut and the thickness of the ice, saw 3 meters, on a side, we use an old cross cut saw, the ones that loggers used, about 30 minutes a side if the depth is 0.5 meters and we trade off cutting.
How long does an actual dive last for?
For purposes of instruction, we like to stay down 20 minutes, but due to cold it is usually less than that. The folks that try this are not always suited up in best dry suits. Last year we had several in just a rental wet suit, a bit chilly. I have with my Viking dry suit and undergarment stayed down for 40 minutes or so.
I'm sending this on 6th August. If you could respond today, I'd be very grateful as I'm under a very tight deadline. Thanks.
Your welcome.
David Ogle
You may use any of the material you find on the following ice diving pages.
January 1999 Ice Diving Information
General Ice Diving Information
Ice Diving Photos at Payette Lake 1997
Ice Diving Photos at Cascade Lake 1998
If you use this I would like a copy of at least the article if not the whole magazine.
Thanks and good luck
In the off season we dive Cozumel Island, Mexico Join us, see details on the page listed below
Take care
Phillip E. Graf
For more information on our ice diving activities, e-mail us at omnidive@omnidivers.com
For more information on our ice diving schedule of activities, check this page Ice Diving Schedule 1999
For more information on our January 1999 ice diving
discussion of needed items/activities,
check this page
January 1999 ice diving info
Ice Diving Location Photos at Payette Lake August 1998 * * *
This page last updated on September 6, 1998.