West of Eden lies on the western side of Similan Island 7. Its boulders, coral and smaller reef residents offer an absorbing alternative to a dive spent watching only the blue. The landscape rewards attention: a broad view of the rocks, then a closer look at the life around them.
Dive dates appear when the writer supplied them. Earlier stories keep their original words and have no newly assigned ratings.
Boulders with plenty between them
Big Blue describes granite channels and overhangs, with hard coral, soft coral, sea fans and sandy or rubble slopes. Its published range is 5–30 metres. This variety gives the site its character: the scenery changes as the rocks meet the reef.
Angelfish, triggerfish and parrotfish feature in the operator’s account, alongside smaller subjects such as cleaner shrimp and ribbon eels. It also records turtles and occasional frogfish. Those are reasons to look closely, not a promise that a particular animal will be waiting.
Conditions shape the dive
Big Blue gives a weak-to-strong current range and describes using a sheltered southern area for some opening dives. That is its approach when conditions suit, rather than a universal entry or a guarantee of an easy dive.
The current and the group’s experience determine how much of the site is appropriate. A shallower reef visit and a deeper boulder dive are different experiences even when the boat writes the same site name on the board.
Choosing West of Eden on an itinerary
ME Diving’s Koon 9 timetable includes West of Eden on a Similan day. It is a useful example of an advertised stop, although weather and operating decisions can change the sequence. The itinerary matters more than assuming every boat visits every named site.
West of Eden and East of Eden are separate sites on opposite sides of Island 7. An itinerary naming one does not establish access to the other. The Similan diving guide provides the wider planning context.
Photographers and non-diving companions
The mix of scenery and small subjects makes lens choice an enjoyable dilemma. A closer subject may be the better option when visibility is limited, while the boulder shapes give a wide-angle photographer a different subject when conditions allow.
A companion’s snorkelling stop or island visit needs to be included in the boat’s programme. A place aboard a diving trip alone does not establish those activities.
Questions about West of Eden
Is West of Eden the same as East of Eden?
No. They are distinct sites on opposite sides of Island 7. A trip to one does not establish access to the other.
Is it always suitable for beginners?
No. Operators may use sheltered sections for suitable groups, but current can become strong. The actual conditions and recent experience matter.
What makes the site interesting?
The combination of granite terrain, coral and smaller reef residents gives it both broad scenery and close-up subjects.
Does every Similan trip include it?
No. It appears on selected itineraries. A named stop remains subject to the operator’s final decision and conditions.
Updated 13 November 2026. Sources: Site terrain and conditions; Example boat timetable.
Best time to dive: the ideal period to plan holidays here is October to November. Access: Boat. See the map of West of Eden on the right for the exact location.
Fishes you may spot while diving West of Eden
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Grouper
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Pipefish
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Trevally
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Tuna
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Turtle
... and more fishes & sea life, Fire Gobie, Pelagic, 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 -
Surreal LifePhoto by Jihye Lee -
Moray Eel CloseupPhoto by Agnes Tjandranegara -
Fishes Black EyesPhoto by Jihye Lee -
Eagle Ray CloseupPhoto by Matthieu Billaud
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