Diving in Glacier National Park July 2009

[DetectorGuy]

I am not sure about my Suunto Vyper computer but my Tusa IQ700 does compensate for altitude. I just wanted a table to back up those two and advice about what not to do while diving/traveling/outrunning bears at these different elevations. Lake McDonald is about at 3400 feet and I would like to dive there. I Guess there are shovels and hand tools that the workers threw in when they were working on the park in the 1930's. Avalanche lake is about 5000 feet I think. If I go from there over Logans pass at 6600 feet above sea level, would I need to threat the difference in elevation like "no fly time"?