Roatán, Honduras
    Islas de la Bahía

    Half Moon Wall

    Best months: Jan–May

    Protected Area

    Islas de la Bahía

    Why dive here

    With 168+ marine species recorded in the area - including barracuda, orcas, sea turtles, whale sharks and pufferfish - Half Moon Wall offers some of Roatán's richest reef diving. Water ranges 27-30°C, warmest August, September, October.

    Best timeJan–May
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBarracuda, Orcas, Sea Turtles, Whale Sharks and Pufferfish · 168+ species recorded
    Water27-30°C · warmest August, September, October
    CharacterReef dive
    StandoutExceptional marine biodiversity

    Half Moon Wall, just off West End, is one of those Roatán sites we always find ourselves coming back to. It’s an easy run for most boats, making it popular, but don’t let that fool you into thinking it’s just another wall. The reef crest starts shallow, around 5m, before dropping away to our max depth of 22m. What we love here is the sheer density of life clinging to the wall itself. You’ll spot parrotfish everywhere, munching away, and the occasional great barracuda hanging in the blue. Keep an eye out for the smaller stuff too: we’ve spent ages watching rusty gobies darting in and out of crevices and the shy rosy blennies peeking from their holes. The black coral formations are particularly striking, contrasting with the vibrant orange elephant ear sponges. We’d suggest going in the late morning, the light catches the wall beautifully then, really making the colours pop. Visibility generally holds around 19m, so you get a good sense of the wall stretching out below you. It’s a site that suits anyone looking for a relaxed dive with plenty to observe, whether you’re into macro or just enjoying the reef's overall health.

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    Conditions

    Ocean conditions, forecast and tides for Half Moon Wall

    Half Moon Wall Ocean Conditions

    Monthly averages for Half Moon Wall, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (16.27, -86.6) (5km away)

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    October Averages

    Sea Temperature

    30°C

    86°F · Range: 29–31.6°C

    Current Speed

    1.41 cm/s

    Direction: NW (315°)

    Chlorophyll-a

    0.052 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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