
Lighthouse Reef is a short run from the West End dock on Cayman Brac. The reef comes in two parts: an outer section, and an inner one cut by multiple swim-throughs. The coral tops out at about 6 m and the sand sits at 14 to 15 m, and lobsters and the occasional nurse shark shelter under the overhangs.
Where it is and how deep
19.6821° N, 79.8869° WPublished position for this site.
The dive
The site sits close to the West End dock, so the boat ride is short. There are two reef sections. The outer one is the deeper, running down to sand at 14 to 15 m, and the inner reef is the one people come for: it is cut by multiple swim-throughs, short passages through the coral rather than anything needing overhead technique.
Take the swim-throughs slowly and check the overhangs on the way, because lobsters sit back in them and an occasional nurse shark shelters under the ledges. Out on the reef the fish are the standard cast — parrot fish grazing the coral, wrasse working over the structure, butterfly fish in pairs. The top of the reef is at about 6 m, so the shallow end of the dive is long.
Marine life and season
- Macro critters
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Prime | Prime | Prime | Prime | Prime | Good | Good | Fair | Fair | Fair | Good | Prime |
Season follows Cayman Brac: Seas are calmest Nov–May; Aug–Oct is hurricane season, when sites often move to whichever shore is in the lee.
Sources
- Lighthouse Reef - Cayman Brac — Scubago
More dive sites in Cayman Brac
Reef
Two anchors grown into the reef at 24 and 27 m
Wall
Sand chutes to the wall, plus a small wreck on the sand
Reef
A large pillar coral standing over a 15 m reef floor
Reef
A sloping mini wall from 10 m down to sand at 16–20 m
A Soviet frigate broken in two on sand at 27 m
Reef
Stairs at the boat launch, then telephone cables west
Reef
Coral fingers and sand channels, usually with some current
Reef
Hawksbill and green turtles along a mini wall from 9 m
Similar dives elsewhere
A natural rock bridge, 6 metres high, at 20 metres
Splendid toadfish, nurse sharks and turtles along the coral
Black coral colonies and a cave at 23 metres
Sponge-painted canyons and an archway into a shallow pool



