Koh Hah consists of five limestone islands offering a diverse topography of reefs, walls, pinnacles, and caverns. Depths range from 5 to 35 metres, with an average of 22 metres. The site features overhead environments within the cavern sections, requiring a torch and guide for safe exploration. Conditions vary, with visibility between 5 and 30 metres and moderate currents. Water temperatures remain warm, typically between 28 and 31 degrees Celsius, though thermoclines may occur. Access is by boat only, and the site is suitable for both diving and snorkelling. Due to the depth and overhead hazards, divers should be aware of risks including nitrogen narcosis and decompression.

Ko Khom is a reef dive site located off Phi Phi Leh, Thailand, suitable for beginner divers. The site features depths ranging from 6 to 13 metres with an average of 10 metres. Access is strictly by boat. Conditions include mild currents and visibility that varies between 6 and 25 metres. The reef structure supports both hard and soft corals. Divers should be aware of potential hazards including jellyfish, sea urchins, sharp coral, stonefish, and moray eels. Night diving is permitted at this location, with typical dives lasting around 45 minutes. It is recommended to coordinate dives early in the morning for optimal visibility and reduced boat traffic.

Koh Yawabon is a challenging dive site located off Phi Phi Leh, defined by a 60-metre tunnel that penetrates through the island. This site is strictly for advanced divers due to the overhead environment, deep sections, and moderate currents. The topography consists of a reef and cave system with depths ranging from 10 to 25 metres, averaging 16 metres. Visibility varies significantly from 5 to 30 metres depending on conditions. Access is exclusively by boat, with typical dives lasting around 68 minutes. Facilities including air fills, equipment rental, and guided tours are available for those planning a visit to this site.

Chicken Island is a reef dive site located off Phi Phi Leh, Thailand, offering a calm environment suitable for beginners. The site features hard and soft coral structures at depths ranging from 8 to 12 metres, with an average depth of 8 metres. Access is by boat, as the site is situated 8 kilometres from the shore. Divers encounter mild currents, though visibility can vary. Water temperatures remain warm throughout the year, between 28 and 31 degrees Celsius. Jellyfish may be present, so it is recommended to scan the water before entry and remain vigilant during the dive. A cafe is available for visitors at the location.

Koh Si is a reef and cave site located off Phi Phi Leh, Thailand. The site features a varied topography suitable for beginners, with depths ranging from 5 to 18 metres and an average depth of 12 metres. Access is strictly by boat, as the site is situated 1000 metres from the shore. Divers and snorkellers can expect water temperatures between 28 and 31C. Conditions include moderate currents and visibility typically ranging from 10 to 20 metres. Hazards at this location include the potential for strong currents, low visibility, and the presence of sharks. Guided tours are available through local dive shops.

Koh Talu is a diverse marine site located off Phi Phi Leh, featuring a combination of reef, cave, drop-off, and wall topography. The site is notable for a short swim-through feature. Divers can expect depths ranging from 5 to 20 metres, with an average depth of 15 metres. Conditions are generally mild, though visibility fluctuates between 5 and 30 metres. Access is strictly by boat, and the site is suitable for beginners. Hazards include entanglement, jellyfish, lionfish, overhead environments, sea urchins, sharp coral, and stonefish. Night diving is available at this location, with typical dives lasting 45 minutes.

Koh Yawasam is a reef and artificial reef site located off Phi Phi Leh. The site features a consistent depth of 8 metres, making it suitable for beginners. Access is by boat only, with a typical dive duration of 50 minutes. Divers should be prepared for moderate currents and visibility ranging from 5 to 15 metres. Water temperatures remain warm throughout the year, typically between 28 and 31 degrees Celsius. Hazards at this location include low visibility, sharp coral, and the presence of sharks. Facilities available for divers include equipment rental, air fills, and showers.

Ko Yawabon, located off Phi Phi Leh, offers a diverse underwater landscape featuring a reef, wall, and cave system. Divers typically explore depths between 15 and 20 metres, with visibility ranging from 15 to 30 metres. The site is accessible by boat only and experiences mild currents. The cave section presents an overhead environment, requiring advanced buoyancy control and careful air management. Species recorded around this area include wrasses, groupers, butterflyfish, and parrotfish. Due to the overhead environment within the cave, this site is suited for advanced divers who can maintain situational awareness. Confirm sea conditions and current direction with your operator before departure.