I think having a reception on the beach is beautiful. You def. need to find out if it gets windy normally or not. It also depends on who your guests are. If it is mostly younger people who dont care about sand and wind etc then you should be fine. However, if you have older guests, they may prefer a reception indoors or just out of the sand. I think the beach is gorgeous, but I have personally opted for either the indoor or poolside just incase it does get windy.