I have a 2013 Key West 203DFS that I keep on a trailer at my house in central MS. I insure it through USAA which pawns it off to progressive. The premium is reasonable, about $240 a year for comprehensive, collision, and liability. I also have a towing rider that pays for towing if I need a tow on the ocean, I think it's an extra $40 a year.
At a very minimum I'd want some sort of liability coverage in case you hit someone on the water, you know they're going to sue you right off the bat.
