We came across this photo while looking for fun vacationing spots in the Caribbean. There is a resort in Bora Bora where they cook guests a laid-back island dinner on the sandbar. The idea looks like a lot of fun, but there are a few things we could see going wrong with this dining set up. For ideas, you can read through this Reddit thread.
Either way, sitting in the water can be a lot of fun! Just make sure that you've got some professional equipment and not some cheap plastic patio furniture. You can recreate this dining atmosphere with Liquidseat's pool chair in your pool.