Koh Haa Yai Diving site offers something for everyone form snorkelers and novice divers to the most experienced diver.
The largest island in the Koh Haa group and famous because of its cavern called “ The Cathedral” or “The Cave”. This cave consists of two chambers. The largest of the chambers goes back into with a large swim through opening into a second chamber.
The main entrance to the cave lies at 14 meters, and this opening goes all the way up to the surface only at low tide. Inside the island divers can remove their regs and breath the air inside.
The rock formations inside the cavern are amazing because the light shinning in from underneath you via the entrance.
Beside that, the East side is great for beginners and snorkelers with a very long shallow coral garden providing calm clear water.
Koh Haa Yai Diving and the deepest part: stunning corals and big Groupers.
300 meters to the west of Koh Haa Yai diving place is another small limestone rock island, the sixth island that we call simply “No Name Pinnacle”. This is a fantastic dive, possibly the best on Koh Haa. The reef drops to 30 meters with pinnacles on the west side to 40 meters and beyond. It is possible to swim from the pinnacle to Yai island by following a ridge at 14 meters that end on the north of the bigger island.
Colourful soft corals and fans are abundant, with a complex and diverse marine eco system from the smallest crustation to the largest pelagic fish in the Ocean.