Koh Khai Nok is a shallow reef site located in the Racha Islands, Thailand. The topography consists of soft white sand interspersed with scattered coral formations. Divers and snorkellers can expect depths ranging from 1 to 12 metres, with an average depth of 7 metres. Visibility at the site typically spans 10 to 30 metres, and currents are generally mild. Access is by boat, and the site is well-suited for beginners. Facilities available include equipment rental, air fills, and guided tours. Divers should be aware of boat traffic in the area and sharp coral structures.

Kamala Rock is a reef and artificial reef site located 300 metres offshore in the Andaman Sea. Divers can explore depths ranging from 5 to 16 metres, with an average depth of 10 metres. The site is accessible by boat and features mild currents, making it suitable for beginners. Visibility typically ranges between 5 and 10 metres. Water temperatures remain warm, between 29 and 30 degrees Celsius throughout the year. Hazards include lionfish, which have venomous spines, and sharks; divers should avoid touching the reef structure and remain calm if sharks are present. Guided tours, equipment rental, and air fills are available for this 50-minute dive.

Ayara Bay is a diverse dive site featuring a reef, wall, drop-off, and artificial reef structure. Located 24 kilometres from shore, this site is accessible only by boat. Depths range from 5 to 30 metres, with an average of 15 metres, making it suitable for beginners who can remain in the shallower sections. Visibility varies significantly between 8 and 30 metres, and water temperatures remain consistent between 28 and 30 degrees Celsius. Divers should be prepared for variable currents and active boat traffic. Always deploy a safety sausage upon ascent and avoid contact with the reef to prevent injury from sharp coral or stonefish.

Anemone Reef is a submerged pinnacle located 1800 metres from the shore of Koh Racha Yai. This site is accessible only by boat and features depths ranging from 5 to 30 metres, with an average depth of 18 metres. The topography consists of a reef structure that requires intermediate skill due to moderate to strong currents that can shift quickly. Visibility typically varies between 10 and 25 metres. Divers should remain close to the reef structure and utilise the sheltered side during periods of increased flow. Always surface with adequate air and deploy a surface marker buoy before ascending in this open water environment.

Tai Pau is a reef dive located 3000 metres from shore, offering depths between 4 and 18 metres with an average of 12 metres. The site features mild currents and visibility ranging from 5 to 30 metres. Water temperatures remain consistent between 28 and 30C throughout the year. Divers should exercise caution regarding sharp coral and rocks when maintaining buoyancy. Blue spotted stingrays are frequently found resting on sandy patches near the reef edge. Guided tours are available and recommended for beginner divers. Species recorded around this area include various moray eels, groupers, wrasses, and butterflyfish.

Staghorn Reef at Koh Racha Yai features a combination of a shallow reef top and a wall that descends to 30 metres. With an average depth of 18 metres, the site offers varied topography for intermediate divers. Access is by boat, and conditions include moderate currents and visibility ranging from 8 to 25 metres. Divers should be aware of potential surge and swell, which can push toward sharp coral. Due to the presence of sharks and currents that can strengthen quickly, maintaining good buoyancy and staying close to your group is essential. The site is best suited for those comfortable with drift diving and managing changing water conditions.

Nakaley is a shore-entry reef site located at the Racha Islands, offering a shallow environment suitable for beginners. Divers typically explore depths between 2 and 12 metres, with an average depth of 7 metres. The site features mild currents and visibility ranging from 5 to 25 metres. Entry requires caution due to surf and shore break conditions; divers should move through the shallows quickly and shuffle their feet. The reef structure provides a habitat for various reef fish and invertebrates. Facilities including showers and changing rooms are available on-site. This location is also suitable for night diving, with typical dive durations of 45 minutes.

Nakalay Reef at Koh Racha Yai offers a varied underwater landscape featuring walls, pinnacles, and drift diving opportunities. The site spans depths from 12 to 40 metres, with an average depth of 25 metres. Due to moderate currents that can intensify quickly, this site is suited for advanced divers with strong buoyancy control. Visibility typically ranges between 10 and 30 metres. Access is by boat only, and divers should remain close to their guide while monitoring air and bottom time. Given the potential for shifting conditions and boat traffic, the use of a surface marker buoy is essential during ascent.