Water Temps and Wetsuit Thickness for 1000 islands
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I am traveling to the 1000 islands area this coming weekend and was wondering what the water temps were (both surface and at depth) and what wetsuit thickness was in the majority. Also is Nitrox suitable for the wrecks?
I think your 5mil will be more than adequate! In early July the water temps were a consistant 64F. It is warmer there now, and you are hearing 72 from people. But you will also see people in Arctic Dry Suits, with doubles, doing 1hr dives at the same place you see me in a 3mil shorty, for 35 mins on a wreck at 60'
The unique thing about diving the St Lawrence river (in that area) is that the water temps are the same at depth. No thermoclines. You are basically swimming in the top layer of water as it flows out of Lake Ontario. I've been to 130' with no change in temp whatsoever. The price you pay for this is a significant current to deal with, and lots of crap in the water floating by all the time!
I use bare foot fins, no hood or gloves and a 5 or 3 mil suit in 1000 Islands all the time, with no problem at all. You will see everything else there though! To each his own.
As for nitrox, thats up to you. If you are doing the "sport depth" wrecks, and drift dives out of Rockport or Brockville you can easily get in 3x dives or more in a day, and lots of wrecks and other sites at 100' or less.
Hope this helps. Are you using a charter operation in the area?