We took our youngest when he was just nine months old! We took a ferry to the "blue lagoon" excursion and it was great! The lagoon was secluded and protected from the waves of the ocean. The water was calm and there were palm trees at the water's edge. I sat him right in the shallow water and let him play. I was a great day. He even took a nap in one of the lounge chairs in the shade. My only suggestion is to bring a small umbrella stroller to get to and from the boat. Hope this helps.. Have fun!