Koh Pha-Ngan has lovely sites around the island which are perfect for both beginners and trained divers. From easy dives off the beach to longer trips by boat you can experience the world of tropical diving. All of the dive sites directly around Koh Pha-Ngan are situated on the south west, west and north coasts of the island, with the highest concentration of sites being in the west.
The waters around Koh Pha-Ngan are much nicer than most people know: fine hard corals with a good range of reefs and tropical/pelagic fish.
During local dives you are likely to see a surprising variety of hard corals & a healthy cross section of reef & pelagic fish. The main structure of the reefs is hump coral (porites sp.), offering shelter to several different staghorn & table corals, plate & leaf corals, some extensive anemone corals, large brain corals (etc etc!) plus filter & soft corals on the deeper sites.
Every dive should introduce you to a variety of damselfish, angelfish, groupers (some of a fair size!), goatfish, wrasse & parrotfish, snapper & anemonefish to name but a few. You can also find stingray, big schooling barracuda, cuttlefish, tuna & hunting mackerel for example.
Most dive schools run daily trips to dive sites around Koh Pha-Ngan and to the premier dive sites in the Gulf of Siam like, Angthong Marine National Park, Sailrock & Koh Tao!