Koh Haa


The Chimney, Koh Haa Neua

Situated on the south side of Koh Haa Neu, The Chimney dive site starts at 5m and descends to 25m. The deeper sandy slopes dropping away from the island feature beautiful hard coral outcrops, blanketed by sea fans and soft corals, and offering stunning swim-throughs and channels to be explored before ascending toward the chimney.

The Chimney, Koh Haa Neua Information

 Time to dive site:   3.0+ hours by dive boat
 Diver level:  Intermediate to advanced
 Currents:  Mild
 Depth:  5 - 28m

Diving in Koh Haa Neua

The chimney itself starts at 14m via an opening in the wall of the island, then the narrow shaft rises, nearly vertically to 8m, where it forks, leading to two exit points at 5m. Requiring expert buoyancy skills, this part of the dive is recommended for more experienced divers only.

Inside the chimney you’ll often find clouds of glassfish, and around the site, a great diversity of marine life can be found. As well as the coral reef and dancing anemones, there are critters and cowries, lionfish and frogfish, banded seasnakes and morays, and schools of barracuda and snapper to name but a few. Take it slowly for a chance to spot the tigertail seahorses which havebeen reported here too.

The Cathedral, Koh Haa Yai

Koh Haa Yai offers wall diving down a sandy bottom at 30m on its south side, and spectacular caves and swim-throughs on the south-east corner.

The Cathedral, Koh Haa Yai Information

Time to dive site:   3.0+ hours by dive boat
 Diver level:   Intermediate
 Currents:   Mild
 Depth:  10 - 25m

Diving in Koh Haa Yai

Koh Haa Yai offers wall diving down a sandy bottom at 30m on its south side, and spectacular caves and swim-throughs on the south-east corner. Travelling west to east, the entrance of the first cave lies at 14m. This smaller cave has a sandy floor and gets narrower as you go inside, so cave diving experience and certification is essential here. Moving further east you’ll find a much larger, less complex cavern, from which this dive site takes its name.

Also at a depth of 14m, ‘The Cathedral’ is one large cavern, split into two main chambers by a vertical wall, and connected by a swim-through. The ceiling reaches 2 - 3m above sea level, so as the light floods in from the surface, the chambers are illuminated with an amazing blue glow, providing an unforgettable diving experience and an excellent photo opportunity.

Koh Haa Yai experiences mild to moderate currents running east - west or vice versa, and as well its caves, there is plenty to see. There are soft corals scattered along the walls, hard coral structures outside the entrance to the caves sloping away to 25+m, a wealth of macro life hiding in the cracks, schools of the usual colourful reef fishes, and even the occasional hawksbill turtle.

The Lagoon , Koh Haa

With breathtaking scenery above the surface as well as below, the islands surrounding The Lagoon create a protected dive site, with excellent visibility, shallow waters, mild to moderate currents, and no current at all in the centre of the lagoon itself. The conditions here lend themselves to snorkellers and all levels of diver, as well as being a perfect spot for night diving.

The Lagoon Information

Time to dive site:  3.0+ hours by dive boat
 Diver level:  Beginner
 Currents:  Mild to moderate
 Depth:   3 - 25m

The underwater topography of the two islands at the east of the lagoon creates a favourite dive spot, with interesting swim-throughs and overhangs formed by the rocks, and a sandy bottom which slopes away to 25m.

The rocks and hard corals here provide a home to a huge selection of sea life, including sea fans, harlequin shrimps, lobster, scorpionfish, porcupine pufferfish, colourful nudibranchs, ornate ghost pipefish and octopus. Schools of snapper, barracuda and many pretty reef fishes can be seen, and maybe even a hawksbill turtle.

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Ocean Geo Diving & Tours

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