I just had to sound in on the water shoes ideas... the sturdier the better! We went snorkeling several days.. did it one afternoon and loved it so much that we did it again and then again! ... but getting in and out ....OUCH!!!!! We eventually learned to float in over the rocky bottom on our bellies leaving only a few painful steps! Water shoes made it better... But like I said, the snorkeling is beautiful and very much worth it!