The most convenient part of this trip was the pick-up and drop-off service in Naha City. After leaving the port, it was quite a long boat ride. The uninhabited island where I snorkeled this time was an outer area of one of the Kerama Islands, and we didn't land on it. The water quality was crystal clear, and there were quite a few beautiful tropical fish. My only regret is that while I'm a good swimmer, I couldn't get closer to the rock crevices near the island, where there would have been even more marine life. Finally, since the round-trip boat ride was about half an hour or more each way, those who get seasick might want to consider taking motion sickness medication. For me, everything went smoothly. When you come to Okinawa, you really should spend a lot of time in the water and seeing the fish.