Black Head Reef

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What you'll see (19)

snakelocks anemoneAnemonia viridisseen 28× near here

Atlantic Beadlet AnemoneActinia equinaseen 22× near here

European Green CrabCarcinus maenasseen 21× near here

Lined Top ShellPhorcus lineatusseen 19× near here

Common Hermit CrabPagurus bernhardusseen 16× near here

Purple TopshellSteromphala umbilicalisseen 16× near here

European Common CuttlefishSepia officinalisseen 15× near here

Great ScallopPecten maximusseen 14× near here

Velvet Swimming CrabNecora puberseen 12× near here

Hairy Porcelain CrabPorcellana platychelesseen 9× near here

Atlantic DogwhelkNucella lapillusseen 9× near here

Pacific OysterMagallana gigasseen 8× near here

Common PeriwinkleLittorina littoreaseen 7× near here

Small-spotted CatsharkScyliorhinus caniculaseen 7× near here

Edible CrabCancer pagurusseen 7× near here

Netted DogwhelkTritia reticulataseen 7× near here

Idotea emarginataseen 7× near here

Greater PipefishSyngnathus acusseen 6× near here

Worm PipefishNerophis lumbriciformisseen 6× near here

Planning a trip

8–13 days

worth going for

Long haul, usually two flights.

11,103km from Singapore — about 24h each way, so two of those days are travel. 14 dive sites within 25km, enough for several days of diving.

When people dive it

Busiest Mar, Apr, May, Jun, Jul, Aug, Sep, Oct.

From 5,325 logged sightings — when divers are in the water, which is not quite the same as when visibility is best.

Dive Crew is a dive group from Singapore. Members plan trips here, log their dives, and share their photos of each site.

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Moon and tides

Waning gibbous

70% lit · day 20 of the lunar month

Neap tides

Neap tides — the smallest range of the month, so the weakest currents. Easy conditions and usually the clearest water, though a drift site may barely drift.

New 10 Oct Full 26 Oct

Phase computed here, not fetched. This is the spring/neap cycle, which sets how hard the water moves — not a tide table: no free source publishes high and low water for Southeast Asian reefs, and the range peaks a day or two after the moon does, by an amount that varies with the coast. For times on the day, ask the operator.

Getting there

~22h 36m

door to water, each way · 4 legs

FlightLondon Heathrow (LHR)~17hFlight time plus the airports at both ends. A connection adds to it.Find flights →
Transferthe jetty~3h 6mRoad transfer to the coast, usually arranged by the resort or liveaboard.Directions →
Ferrythe crossing~2hAt this distance the last stretch is a scheduled crossing rather than a dive boat, so book it before the flight — a missed sailing usually costs a day. Which crossing it is has been worked out from the distance and not from a timetable; ask the operator.
Dive boatBlack Head Reef~30 minThen the dive boat out from the island.

📍 Black Head Reef on Google Maps 🧭 Route from London Heathrow

Times marked ~ are estimated from straight-line distance and will be roughly right at best. The road legs are the ones Google Maps answers properly; it will not plan the ferry or the dive boat at all. A dive site's coordinates put a pin in open water, so the map link drops you on the site, not on a jetty.

Details

Type: yes
Island: Thatcher Rock
Country: United Kingdom
Marks: 50°28.231'N 3°29.494'W
Position: 50.4705, -3.4916

Where it is

Loading the map…

Nearby

Sightings and photographs from iNaturalist contributors, research-grade records within 6km, under Creative Commons licences. Counts are what divers and snorkellers have bothered to log — a common fish with few records is common all the same.