Boulder city diving site in the Similans features many boulders worth exploring. There are beautiful fan corals between the boulders. It is a good spot to observe reef sharks, Leopard sharks, the superb Napoleon wrasse as well as many humongous bumphead parrotfishes and barracudas swimming by. It is also possible to encounter Manta Rays and even a Whale Shark, so always keep an eye out in the deep blue! It is located on the south east of the Similan island number 3. The current is usually gentle but can sometimes become quite strong. The visibility is very good between 20 meters and 30 meters. The dive site is around 22 m deep and it is more suited to open water advanced divers. Just nearby there is another great dive site, the famous Shark Fin Reef.
Best time to dive: the ideal period to plan holidays here is October to November. Access: Boat. See the map of Boulder City on the right for the exact location.
Fishes you may spot while diving Boulder City
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Manta Ray
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Napoleon Wrasse
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Parrotfish
... and more fishes & sea life, Ray
Photos
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Yellow Seahorse in Lembeh StraitPhoto by Agnes Tjandranegara -
Clown fishes waiting in front of their blue anemone housePhoto by Jihye Lee -
Blacktip Shark patrolling the crystal clear water... EPIC photo!Photo by Yann Hubert -
Huge Hammerhead Shark patrolling the reef in French PolynesiaPhoto by Yann Hubert -
Beautiful & Colorful Mandarin FishPhoto by Rich Guest -
Lion Fish swimming in crystal clear waterPhoto by Agnes Tjandranegara -
Flying Ray Manta in Bali!Photo by Jihye Lee -
Surreal LifePhoto by Jihye Lee -
Giant ClamsPhoto by Jihye Lee -
White Black NudibranchPhoto by Jihye Lee
Diving Reviews for this region
Similan Islands
Great Biodiversity and fauna. Excellent chances to spot the giants Manta rays and Whale Sharks. Superb Scenery of tropical islands! Good spot for underwater photography.
Liveaboard Reviews in Similan Islands
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The Junk
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MV Smiling Seahorse
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The Phinisi
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Andaman Tritan
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MV Pawara
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MV Oktavia
The 30 meters Oktavia is a liveaboard operating in Thailand, more specifically cruising to the Similan Islands. Indeed, the sturdy vessel promised a nice calm voyage on the Andaman Sea. . Boat Cabins & Layout The Oktavia welcomes a maximum of 20 gu
South Siam 3
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South Siam 4
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