Long Caye Aquarium
Protected Area
Zone 2
Why dive here
With 213+ marine species recorded in the area - including barracuda, dolphins, eagle rays, nurse sharks and sea turtles - Long Caye Aquarium offers some of Lighthouse Reef's richest reef diving. Water ranges 27-30°C, warmest August, September, October.
Long Caye Aquarium is a site we keep coming back to in Lighthouse Reef. It's not a deep dive, typically hovering around 10-15 meters, making it perfect for longer bottom times and really soaking in the details. We love it because it feels like a living diorama, an open-air classroom for observing some of the reef’s smaller, more elusive characters. Look closely and you'll spot Roughhead Triplefins and Rosy Blennies peeking from crevices, or a Saddle Stargazer buried in the sand, just its eyes showing. We often see Caribbean Chestnut Morays snaking through the Finger Coral, and the Mustard Hill Coral formations are particularly healthy here. The site excels in macro life, though the occasional Sheephead or Grunt school will cruise by. Our favourite time to dive it is late morning, when the light really makes the colours pop, especially on the Flamefish. It's a gentle dive, suited for anyone who appreciates slowing down and truly observing the intricate life of the reef rather than just chasing big pelagics.
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Conditions
Ocean conditions, forecast and tides for Long Caye Aquarium
Long Caye Aquarium Ocean Conditions
Monthly averages for Long Caye Aquarium, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (17.22, -87.61) (6km away)
October Averages
Sea Temperature
30°C
86°F · Range: 29.1–31.7°C
Current Speed
11.66 cm/s
Direction: NW (301°)
Chlorophyll-a
0.074 mg/m³
Very clear (oligotrophic)
Salinity
35.96 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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