Fun place for intro dives. The resort have an underwater post box, which they claim is the only one in the World? Anyone know of any others? Lots of snorkelers head here for day trips but it is a good place to do ...Fun place for intro dives. The resort have an underwater post box, which they claim is the only one in the World? Anyone know of any others? Lots of snorkelers head here for day trips but it is a good place to do training and had patches of flat broken coral where you can do drills.