Green Rock Dive Site in Koh Tao

Green Rock - Great For Advanced Divers!

  • Travel Time: 20 minutes
  • Location: North west side of Koh Nang Yuan
  • Depth: 5m-28m. Average 20m
  • Type of site: large boulders, large rock formations and cave-like swim-throughs
  • Level: Better suited for Advanced divers
  • Conditions: Mid to Strong Current and ranging visibility due to its exposed location
  • Average Visibility: 2-20 meters
Green Rock Dive site Map. Koh Tao, Thailand

On its best days, Green Rock stands out as one of Koh Tao's top dive sites!

The top of Green Rock is a mere 2 meters deep, and it's a common sight to witness large schools of Yellowtail Barracuda.
Once you descend, you will see lots of large rock formations and boulders covered in a variety of marine life.

Green Rock dive site marine life, Koh Tao, Thailand

But the real thrill begins when you explore the intricate network of cave-like swim-throughs that make this dive site truly captivating! This is where the adventure gets truly exciting.

Among the crevices, you'll spot Nudibranchs, Dancing Durban Shrimp inside the caves, and awesome creatures like Ghost Shrimp, Banded & Janss' Pipefish.

Doryrhamphus janssi, Janss' pipefish , is a species of pipefish belonging to the family Syngnathidae in Koh Tao, Thailandd


Head north of the main rock formation, and you'll encounter the renowned 'trigger pits,' nesting grounds for Titan and Yellow Margin Triggerfish. But beware, especially during the breeding season (April-June), as these fish can be quite territorial!

Triggerfish in Koh Tao, Thailand


For a leisurely, extended dive, head to the northwestern coastline of Koh Nang Yuan. Here, you'll see Angelfish, Butterflyfish, Longfin banner fish, and the Harlequin Sweetlips, White eyed moray eels, and more.

White-eyed moray eel playing hide and seek in Koh Tao, Thailand


Green Rock is also a favorite haunt for regular visitors, including Hawksbill and Green Sea Turtles, and the occasional appearance of Banded Sea Kraits. We're even lucky enough to witness the majestic Whalesharks passing by!

whale shark with divers in Koh Tao, Thailand


TO SUM IT-UP!


On its best days, Green Rock stands out as one of Koh Tao's top dive sites. However, it's better suited for Advanced divers!

Happy Diver in Koh Tao, Thailand
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