Koh Haa Yai #5 (Cathedral)
Protected Area
Mu ko Lanta
Why dive here
With 177+ marine species recorded in the area - including barracuda, giant moray eels, whale sharks, clownfish and pufferfish - Koh Haa Yai #5 (Cathedral) offers some of Koh Lanta & Phi Phi's richest cave diving.
Koh Haa Yai #5, often called "The Cathedral," is a really approachable cave dive, perfect for those curious about overhead environments without anything too committing. We usually drop onto a sandy bottom at about 18 meters, then follow the reef wall into the main chamber. Inside, the light streams down through several openings, creating some dramatic shafts that really live up to the 'cathedral' name. You’ll find plenty of small schooling fish here, like glassfish, and we’ve spotted leopard sharks sleeping on the sand a few times too. It's an excellent spot for beginners looking to try a cavern, or for photographers wanting to play with light.
Typical Koh Haa Yai #5 (Cathedral) Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Depth of 19m - Advanced Open Water certification recommended.
Overhead environment - never enter without proper cave/cavern training, redundant equipment, and a guideline.
Always perform a 3-minute safety stop at 5m before surfacing.
Nearest Dive Centres to Koh Haa Yai #5 (Cathedral)
Dive shops near Koh Haa Yai #5 (Cathedral)
Anti gravity Divers
OK CLUB
Dive and Relax
Palm Beach Divers Co., Ltd
Apo Dhatu Divers
Go Dive
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