Koh Bon is just off Similian Island near Khao Lak. The water is clear and warm. However, every now and then a cold current can come up and be fairly strong so take caution. The reef is beautiful and full of colorful marine life.

Koh Na Yak, near Khao Lak, is a shallow reef dive (max 9m) with a gently sloping sandy bottom. It’s an excellent site for beginners and courses, known for its diverse hard corals and abundant reef fish, including moray eels, barracudas, and clownfish. Keep an eye out for nudibranchs!

The Sea Chart wreck, off Khao Lak in Phang Nga, is an 84m cargo ship at 40m deep (shallowest 24m). This advanced wreck dive is largely intact, covered in soft corals. It teems with lionfish, batfish, snapper, huge schools of barracuda, and occasional whale sharks. Currents can be strong.

The Prem Chai wreck, off Khao Lak, is a purpose-sunk tin dredger (2001) at 12-22m, forming an artificial reef. Accessible for all levels, it’s covered in clams and corals. It’s a thriving artificial reef.

Nai Thai Beach in Phang Nga is not a commonly recognized or established recreational dive site. It is primarily known for its long, quiet beaches rather than dedicated underwater attractions. There are no prominent coral reefs.

Koh Bon East Side offers a sloping reef with hard corals transitioning to a sandy bottom. It’s often where you find leopard sharks resting. While the main attraction is the West Ridge for manta rays, the East side provides a more relaxed dive with abundant reef fish and good visibility.

Bon Island, about 50 km west of Khao Lak, is an uplifted limestone island about 20 km north of the Similan Islands. This is a long and narrow ridge point on the west side of the island.

Koh Bon North Reef offers a sloping reef with hard corals transitioning to a sandy bottom (10-30m). This relaxed dive is great for beginners and offers good visibility. While mantas frequent the West Ridge, this side provides ample reef fish, including barracudas and moray eels.

This dive site is actually between Koh Bon Bay and West Ridge. A good place to jump from the boat into the water, as you can dive without currents. Viewing the waterfall from below is a natural spectacle in itself.

Nice shallow area for diving with a slightly sloping reef. You can swim from the North Ridge over the West Ridge and into the bay. Currents are usually weak to moderate.