Hmmm. I've never seen anyone do this. Once you get there and hang out with the sun on your body, you will forget all about your bikini. And you will especially love being in the water without one!
I can only stay in the sun for maybe an hour or so at time as I am very faired skinned so i get sun burnt easily, If I cover up with a towel occasionally to protect my self from prolonged exposure to the sun is this going o be a problem ?