hi all, thanks for the reply... I didn't that boat would actually look like flying, but yeah, the water is so clear that you can see the bottom of the boat...
So, a regular polarizer would do the trick huh?
It would still depend on a lot of factors, even if you use a polarizer, there's still things to consider such as:
1) First and most important is, of course, light availability.
2) Cleanness of the water (transparency).
3) How deep goes the boat bottom below the water line. Water blocks light relatively quickly and it may well happen that there's just not enough light reaching the bottom.
Anyway, the short answer to your question is yes, the polarizer will allow you to get rid of surface reflections and thus reach deeper into the water, how deep however depends in a lot other things.