Andaman has the most amazing variety of corals in the world. Corals of all the possible colours can be seen here. The experience of being surrounded by colourful coral reefs and fishes is beyond imagination. There are two ways to see the reefs. One is by a glass bottom boat in which takes to into the seas where you can see the corals and fishes from the bottom of your boat. But the best way to watch these creatures is by snorkeling.