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Liveaboard site guide with depth, visibility, and marine life.
Dive Spot Guide•
Stonehenge
Advanced Similan boulder reef with current and sharks.
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Local operator required
Use a local Similan operator that can time the current and mooring-line descent.
Boat-only Similan site off Koh Miang; expect current, deep boulders, and an advanced profile with swim-throughs.
About Stonehenge
Stonehenge is a boat-only Similan boulder reef off the north-west tip of Koh Miang (Island 4). Massive granite blocks create swim-throughs, canyons, and cavern-like gaps, and a mooring-line descent is usually part of the run. The exposed, current-swept setting makes it a site for experienced divers rather than casual visitors, but clear water, soft corals, and a mix of sharks, rays, barracuda, tuna, and macro life make it rewarding when the boat team times it well.
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Research Estimate At Stonehenge
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 18m
AccessSimple entry
CoralHealthy coral
Aquatic LifeGreat variety
FacilitiesBasic facilities
Crowd / PopularityFew visitors
CurrentStrong current
Where Is Stonehenge?
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Community sourced coordinates.
Stonehenge Planning Details
Depth range, seasonality, and planning context.
Reported Depth
24m - 40m
Depth Note
Guides place the main structure around 24 m, with the dive commonly carried into the mid-30s and down to about 40 m.
Best Season
November to April; the park closes May 1 to October 31.
Typical Conditions
Deep boulder dive with swim-throughs, medium-to-strong current, clear water, and limited diver traffic.
Safety & Access At Stonehenge
Hazards, restrictions, and access requirements.
Key Hazards
Dangerous wildlifeOverhead environmentRestricted accessStrong currentWaves
Safety Notes
Use the mooring line, keep buoyancy tight between boulders, and plan gas around a deep, current-prone profile.
Access Restrictions
Boat-only; not for novices or snorkellers.
Legal Notes
Mu Ko Similan National Park closes May 1 to October 31, so trips need to fit the open season and park rules.
Local Intel For Stonehenge
Community notes to help plan your visit.
Scuba Diving
Advanced boulder dive with mooring-line descent, swim-throughs, and a compact profile.
Freediving
Not a freedive target; the site is deep and current-prone.
Snorkeling
No snorkelling is called for here; this is a scuba-only dive.
Wildlife at Stonehenge
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Stonehenge
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Stonehenge
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility18m
Activity
No dive activity logged yet.
