| Imported post
Well, I must hasten to explain that I don't dive under such extreme conditions as that. The big difference between McMurdo Sound and where I dive is not the temperature in the sea – however cold the air gets, the temperature in the sea can't fall below freezing point (about minus one-and-a half degrees Celsius) without it freezing – but the air temperaure. The temperature in the sea here does approach freezing point some winters but once you're in the water it doesn't feel that much colder than it does at 4 or 5 degrees if you're wearing a good drysuit, a good undersuit and thermal underwear, a warm hood and warm gloves. The real problem is getting dressed before the dive and undressed after the dive if you have to do it outdoors. For that reason, I won't dive if the temperature falls much below minus five. We're having a cold spell just now, with temperatures around minus 4-5 in the middle of the day, so it's getting near my critical limit. I shall be diving thursday evening as usual, but I don't expect the dive will last much longer than 30 minutes. As for kit, I know my trusty TX40s won't let me down, and nor will my Scubapro R190 pony reg. How cold does it have to get before you stop diving in Canada, Lawrence?  |