A great way to see the exotic marine life if you aren't quite ready to take the plunge into the deep blue.
We went on a 'snorkel-safari' around the island, and stopped off at the Barrier Reef to snorkel around the coral. The water is crystal clear, and you also get to swim (safely) with sharks and manta-rays.
If you don't fancy getting your feet wet, try the glass-bottomed boat tours around a lagoon- you get the glorious mountain scenery above, and the colourful fishes and coral below.
Send your feedback or queries to firstname.lastname@example.org