Blue Wall

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What you'll see (19)

Sally Lightfoot CrabGrapsus grapsusseen 22× near here

Atlantic Sergeant MajorAbudefduf saxatilisseen 13× near here

Blue Land CrabCardisoma guanhumiseen 11× near here

West Indian Fuzzy ChitonAcanthopleura granulataseen 8× near here

Flying GurnardDactylopterus volitansseen 8× near here

Caribbean Ocean SurgeonfishAcanthurus tractusseen 8× near here

Schoolmaster SnapperLutjanus apodusseen 7× near here

Western Atlantic TrumpetfishAulostomus maculatusseen 6× near here

Slippery DickHalichoeres bivittatusseen 6× near here

Caribbean Bluehead WrasseThalassoma bifasciatumseen 6× near here

Stoplight ParrotfishSparisoma virideseen 6× near here

Smooth TrunkfishLactophrys triqueterseen 6× near here

Four-eyed ButterflyfishChaetodon capistratusseen 5× near here

Queen ParrotfishScarus vetulaseen 5× near here

Giant AnemoneCondylactis giganteaseen 5× near here

Spotted ScorpionfishScorpaena plumieriseen 4× near here

Striped ParrotfishScarus iseriseen 4× near here

Atlantic Long-spined Sea UrchinDiadema antillarumseen 4× near here

Bar JackCaranx ruberseen 4× near here

Planning a trip

8–14 days

worth going for

Long haul, usually two flights.

18,358km from Singapore — about 24h each way, so two of those days are travel. 34 dive sites within 25km, enough for several days of diving.

When people dive it

Busiest Jan, Feb, Jul, Oct.

From 1,225 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

71% 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

~39h 33m

door to water, each way · 4 legs

FlightRoatán (RTB)~26h 9mFlight time plus the airports at both ends. A connection adds to it.Find flights →
Transferthe jetty~10h 54mRoad 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 boatBlue Wall~30 minThen the dive boat out from the island.

📍 Blue Wall on Google Maps 🧭 Route from Roatán

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: Isla de San Andrés
Country: Colombia
Marks: 12°29.848'N 81°42.855'W
Position: 12.4975, -81.7143

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.