Dennis Bakhuis

Dive site · sea · The Similan Islands

🇹🇭 Stonehenge

Similan Islands, Phang Nga, Thailand

Standing granite pillars on sand in the middle of the archipelago, north of Island 4 — a deep site, and named for exactly what it looks like.

Dives here
1
Deepest
28.6 m
Water
salt
First · last
2013

Revision 1 · changed 10 Oct 2026

History
  1. r1 10 Oct 2026 Imported from the personal log · Dennis Bakhuis

Site data © divelog-sites contributors (ODbL), descriptions and maps CC BY-SA 4.0 · 53edcaf

1 map

Island 4 (Ko Miang)Stonehenge boulders↓24 mN50 m
  • Pinnacle / rock
  • Shoreline
  • Depth
Site map · 1 object · max 24 m

Stonehenge, a group of very large granite boulders standing on sand off the north-western tip of Similan Island 4 (Ko Miang); coastline from OpenStreetMap. The boulders are drawn as one mark at the divezone position (8.57878, 97.62772), which agrees with Similan Diving Tours ('the north-western tip of Koh Miang') and the Similan Diving Safaris overview. The tops are at about 24 m and the sand at 35-40 m, with swim-throughs, canyons and gorgonian-lined valleys between the rocks and a mooring line for the descent; their individual layout is unknown. The site coordinates (8.5775, 97.641) are 1.5 km east, off the north coast.

Map © divelog-sites contributors, CC BY-SA 4.0 · 53edcaf

A group of very large granite boulders standing on a sand seabed directly north of Ko Miang, Similan Island 4, in the centre of the archipelago. The rocks rise from 25 m and below and the site goes to 40 m, with soft corals and gorgonian sea fans lining the valleys between them. White tip, black tip and leopard sharks are all regular.

Current can be strong, and it is a site for experienced divers.

Dived 26 November 2013 to 28.6 m.

Position corrected September 2026. The workbook had this at Ko Bon, 32 km north — the area label in the log. Stonehenge is a Similan site, north of Island 4, and the other dive that day (Sharkfin Reef, Island 3) puts the boat in the southern half of the archipelago, not up at Ko Bon. The earlier note that it had once been geocoded to Bangkok, 742 km away, gives some sense of how far this one has travelled.

Dived here with

Kim

Nearby sites

1 dive at Stonehenge

  1. 26 Nov 2013 with Kim boat date26 Nov 2013 depth28.6 m time43 min water—

Sources

  • First-hand observation (Dennis Bakhuis)