Although, frankly, I would think after spending some time on the water (and in the water) the LAST thing a person would want to do is "lie out in the sun"!!!
Dark and cool would be more suitable, dontcha think?
Anyway, there is place that is a bar/cafe (I think) over by a dock, and you can lie out on the dock (I think) or in a hammock...
I read it somewhere, can't remmeber the name.