Do I need a local operator for Stonehenge?

Yes. A local Similan operator is the practical way to match the current, boat timing, and dive plan.

How do you get to Stonehenge?

Stonehenge is boat-only, usually reached by liveaboard or a speedboat day trip from the Similan side.

Is Stonehenge good for snorkeling or freediving?

No. Stonehenge is a scuba site, not a snorkel or freedive target.

What conditions should I plan for at Stonehenge?

Plan for almost constant current, a deep start, and exposed open-sea water around the boulders.

What do you usually see at Stonehenge?

Expect sharks, rays, barracuda, tuna, boxfish, triggerfish, morays, and occasional macro surprises like ghost pipefish.

When is Stonehenge best to dive?

The best window is November to April, when the Similan Islands are open and conditions are usually easier to schedule.

Who is Stonehenge best for?

Stonehenge is best for experienced scuba divers who are comfortable with current, depth, and a boulder-heavy profile.

Stonehenge

Advanced Similan boulder reef with current and sharks.

Scuba DivingBoatIntermediate24m - 40m

Pinnacle

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.

Safety & Access

Site Conditions

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.

Where Is Stonehenge?

This spotExplore nearby spots on the map

Community sourced coordinates.

Map imagery © Mapbox

Featured Operators

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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.

Saltwater Fishes

Barracuda

Sharks

Blacktip Reef Shark

Carcharhinus melanopterus

a yellow and black spotted fish in an aquarium

Saltwater Fishes

Boxfish

Ostraciidae (family)

Saltwater Fishes

Whitetip Reef Shark

Triaenodon obesus

Research Estimate At Stonehenge

Conservative baseline from public research. No community dives logged yet.

Avg. Visibility18m

Access4/5 · Simple entry

Coral4/5 · Healthy coral

Aquatic Life4/5 · Great variety

Facilities3/5 · Basic facilities

Crowd / PopularityFew visitors

CurrentStrong current

Recent Visits

Thailand · Khao Lak (Similan and Surin Islands)

Stonehenge

Advanced Similan boulder reef with current and sharks.

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FAQ

Stonehenge, Thailand - Dive Spot Details & Conditions | DiveJourney