It's a great location to watch coral reef, turtles, and fishes. However your experience will highly rely on the visibility of the water. On my trip at the sand bar, the water was murky due to tide and wave. But still managed to see 4–5 turtles. It would be wonderful if I visited on a day that the water was more calm. Casey is very helpful. Remember to bring some cash to tip him. I feel bad not to have done so...