Shark Island Dive Site in Koh Tao

Just as cool as its name suggests!

  • Travel time: 20 minutes 
  • Location: south east of Koh Tao
  • Depth: Max 26m, Min 0m – Average 13m
  • Type of site: Granite islet
  • Level: Suitable for all level Divers in favorable sea conditions
  • Conditions: Can have a strong current due its location
  • Average Visibility: 5-30 meters
Shark Island Dive Site Map. Koh Tao, Thailand
Welcome to Shark Island, a fantastic spot that totally lives up to its awesome name! This uninhabitable granite islet, formed from massive boulders rising over 10 meters above the water and plunging down to 15 meters below, totally looks like the dorsal fin of a shark when viewed from above! As you descend, those boulders gradually give way to sandy stretches between 15 and 18 meters, with additional scattered rocks beyond the main dive site, taking you down to 26-28 meters on the southeast end.
shark island in koh tao


Probably the most diverse spot around!

shark island beautiful soft corals

What sets Shark Island dive site apart, especially on favorable days, is its breathtaking array of colors. The presence of vibrant purple Soft tree Corals, Gorgonian fans, Hard corals, Whip corals, Barrel Sponges, Sea Anemones, Table corals and intricate Brain Corals thoughtfully interspersed across the dominant boulders transforms it into a visual masterpiece!

shark island dive site school of fishes and colorful coral reefs


But that's not all

Periodic currents usher in nutrient-rich waters, fostering a vibrant and diverse ecosystem. You'll come across an array of marine life, including groupers, sleek batfish seeking refuge from Trevally, lively schools of butterflyfish, chevron barracudas as well as sightings like Scribbled Filefish, pufferfish, and Crocodile Needlefish. And you may have the chance to encounter Hawksbill and Green turtles !

sea turtle playing hide and seek at shark island in koh tao, thailand

Along the eastern side, you'll stumble upon "Sea bunny"Jorunna nudibranch nurseries, adding yet another layer of awesomeness to the already fascinating marine diversity of Shark Island.

Sea bunny or Jorunna nudibranch

Keep your eyes peeled as you investigate the nooks and crannies, where Harlequin Sweetlips find shelter in the shadows of larger boulders. There, you may also spot yellow boxfish, White-eyed moral eels, and blue-spotted stingrays.

Beautiful Yellow Boxfish, koh tao


Adding an element of excitement to each dive, Titan triggerfish may make an appearance, and they can be quite protective of their territories. And if luck is on your side, you may have the chance to encounter whale sharks and other pelagic.


whale shark, koh tao, thailand


 The maximum depth at this site reaches 26 meters, but there's something fascinating to see at nearly every level on good days. Oh, and Shark Island rocks! Just a heads up, though, there can be a decent current going on, so it's ideal for divers with a bit of experience, like intermediate divers and beyond. If you want to be extra sure about sea conditions, don't hesitate to reach out to us in advance.

  • Here's the deal – Shark island should make the list of every diver who books a fun diving package.
  • But wait, there's more! ! If you're all about diving and want to get up close and personal with the underwater world, our PADI Underwater Naturalist Specialty course is a fantastic pick.
  • And if you're into learning about capturing underwater shots or eager to supercharge your photography skills, our PADI Digital Underwater Photographer Specialty course is the absolute go-to!
underwater photographer during diving in koh tao, thailand
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