Join Date: Dec 2008
Location: Calgary, AB, Canada
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Once you boat batteries are submerged you will have no power to inflate your raft.
I think you would be much better off getting a good inflatable tender that you can tow.
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Sail Canada Advanced Cruising Instructor
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ASA 201, 203, 204, 205, 206, 214
As I sail, I praise God, and care not. (Luke Foxe)