+1 rhans
Although not optimal, we have proven ourselves waterproof. If it is not your boat, we have found that plan B and C need to have the glass broken.
Scuba is a great option, renting a car to explore is good. Buy a box of hefty bags (raincoats) and make some friends.
Only bummer is if you are cold sensitive, go shopping for some oil-skins/gore-tex.
we had a seven day rain, but we were still happy. there is always plan D.