Lighthouse Reef, Belize
    Zone 2

    Long Caye Aquarium

    Best months: Oct–Jan

    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.

    Best timeOct–Jan
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBarracuda, Dolphins, Eagle Rays, Nurse Sharks and Sea Turtles · 213+ species recorded
    Water27-30°C · warmest August, September, October
    CharacterReef dive
    StandoutExceptional marine biodiversity

    Long Caye Aquarium consistently delivers, and it's our pick for a leisurely, vibrant dive when you're exploring Lighthouse Reef. The name isn't just marketing fluff here; it really does feel like swimming inside a massive, open-air tank. We love dropping in over the shallow reef, maybe 6 or 7 metres down, and then following the gentle slope as it gives way to the wall. Visibility hovers around 20 metres most days, sometimes more, letting you take in the sheer volume of fish from a distance. Look for the big schools of French grunts and schoolmasters that mill about the overhangs, sometimes so thick they part like a curtain as you swim through. We often spot Caribbean chestnut morays peering out from their crevices, and the yellowhead wrasse are always darting about. While the data says max 20m, you can really just hang out in the 10-15m range and still feel completely immersed. It’s an easy drift, often with a gentle current pushing you along the wall, making it perfect for photographers or anyone who just wants to soak it all in without fighting the elements. Best enjoyed in the morning, before any stronger breezes pick up.

    Today05:4317:3311h 50m daylightGolden hour 17:04

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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)

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    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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