Chumphon Pinnacle is a large granite formation located 11 kilometres from Koh Tao. The site consists of a main pinnacle surrounded by smaller rock formations, creating a complex reef and wall topography. Depths range from 14 to 40 metres, with an average depth of 22 metres. Due to its offshore location, boat access is required. Divers should be prepared for strong currents and potential surf at the surface. A deep thermocline is sometimes present between 25 and 30 metres, while water temperatures generally remain between 28 and 30 degrees Celsius. This site is suitable for advanced divers capable of managing variable visibility and currents.

Chumphon Pinnacle is a granite pinnacle located 11 kilometres from shore in the Gulf of Thailand. The site features a main pinnacle surrounded by smaller rock formations, with depths ranging from 14 to 40 metres and an average depth of 22 metres. Access is by boat only, and the site is suited for advanced divers due to moderate currents and potential for nitrogen narcosis at depth. A thermocline typically occurs at 25 metres, which may affect visibility. Species recorded around this area include Titan Triggerfish, Bluespotted Fantail Ray, Blue Ringed Angelfish, Harlequin Sweetlips, various wrasses, anemonefish, and groupers. Night diving is available at this location.

Green Rock is a pinnacle dive site located near Koh Nang Yuan, offering a varied underwater topography that includes swim-throughs and an overhead environment. The site is suitable for intermediate divers, with depths ranging from 5 to 30 metres and an average depth of 20 metres. Access is by boat only, and divers should be prepared for moderate currents and visibility that can fluctuate between 5 and 20 metres. The site supports night diving and is typically explored in 30-minute dives. Due to the presence of deep sections, overhead structures, and potential currents, divers should maintain appropriate caution during their visit.

Red Rock is a pinnacle located 50 metres offshore in the Northwest Pinnacles of Thailand. The site features a reef, cave, and cavern system with depths ranging from 2 to 22 metres, averaging 10 metres. Divers can encounter Titan Triggerfish, Longfin Bannerfish, Pink Skunk Anemonefish, Sling-jaw Wrasse, Golden Butterflyfish, Blue-barred Parrotfish, and various wrasses. Less frequently, Blue Ringed Angelfish, Bluespotted Fantail Rays, Harlequin Sweetlips, Porcupinefish, Sixbanded Angelfish, Magnificent Giant Anemones, and White Eyed Morays are recorded. Access is by boat only. Conditions include mild currents and visibility between 5 and 25 metres. The site is suitable for beginners, with typical dives lasting 45 minutes.

Chumphon Pinnacle is a granite pinnacle located 25 kilometres from shore in the Northwest Pinnacles area of Thailand. The site features large granite blocks forming a small hill, including a sheer crack that allows for a swim-through. Depths range from 5 to 40 metres, with an average depth of 20 metres. This site is suitable for intermediate divers and is accessed by boat. Conditions vary, with visibility ranging from 2 to 30 metres and moderate currents. Hazards include deep water, potential entanglement, jellyfish, low visibility, overhead environments, sharp coral, strong currents, and thermoclines. Typical dive times are approximately 50 minutes.

Northwest Pinnacles at Koh Nang Yuan features a diverse topography of reefs, pinnacles, and caves. The site is accessible by boat and is suitable for beginners, with depths ranging from 2 to 30 metres and an average depth of 8 metres. Conditions are generally mild, though divers should be aware of potential boat traffic, rip currents, and surf. Visibility varies significantly from 2 to 30 metres, and water temperatures remain warm between 28 and 31 degrees Celsius. The site supports night diving and offers a 50-minute typical dive duration. Facilities including equipment rental, air fills, and guided tours are available on the island.

Boyancy, also known as Buoyancy World, is an artificial reef project situated off the west coast of Koh Nang Yuan near Koh Tao. This site features a series of structures designed to support reef development and provide buoyancy training opportunities. Divers can explore the area at depths ranging from 5 to 20 metres, with an average depth of 10 metres. Access is by boat only, and the site is suitable for beginners. Conditions generally feature mild currents and visibility between 5 and 25 metres. Hazards include boat traffic, jellyfish, sea urchins, sharp coral, stonefish, and triggerfish. The site is supported by local facilities offering air fills, equipment rental, and guided tours.

Leamnamtok is a shore-entry muck diving site located at the Northwest Pinnacles in Thailand. The site features depths ranging from 5 to 16 metres, with an average depth of 8 metres, making it suitable for beginner divers. Visibility typically fluctuates between 5 and 10 metres, and divers should be prepared for moderate currents. The seabed consists of rocks and coral, requiring careful buoyancy control to avoid contact with sharp surfaces. Stonefish are present on the substrate, so divers should avoid touching the bottom and shuffle their feet when entering from the shore. Night diving is permitted at this location, and a dive torch is recommended to assist with spotting small organisms in the substrate.