Half Moon Wall
Why dive here
With 210+ marine species recorded in the area - including barracuda, dolphins, eagle rays, nurse sharks and sea turtles - Half Moon Wall offers some of Utila's richest wall diving. Water ranges 27-31°C, warmest June, August, September.
Half Moon Wall is a site we keep coming back to in Utila, especially when we’re looking for a relaxed, easy dive with plenty to hold our attention. It’s got that classic Caribbean wall vibe, but with a few twists. The dive usually starts with a gentle drop over the reef crest, maybe 10 or 12 meters, then the wall proper just rolls away below you. We’ve found the currents here are usually pretty mild, which means you can really take your time and scour the crevices. And scour you should, because this place is a blenny and goby hotspot. We’ve spent whole safety stops just watching the Imitator Blennies darting in and out of their holes, tiny flashes of personality. There’s a particular stretch, about halfway along the wall at around 20 meters, where the sponges seem to be home to a dozen Goldspot Gobies. Look out for the Whitestar Cardinalfish too, often tucked away in small caves or under ledges, their eyes reflecting your torchlight. It’s a great site for photographers who enjoy macro and wide-angle. You can get some lovely shots of the wall itself, draped in sponges and corals, and then switch to macro for the smaller critters. We’d suggest an early morning dive if you can swing it; the light on the wall is softer and you sometimes catch Drum and Flounder still foraging before they settle down for the day. This site suits anyone looking for a chill dive without aggressive currents but with plenty of interesting life to observe.
Reviews for Half Moon Wall
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 (16.95, -88.05) (16km away)
October Averages
Sea Temperature
30°C
86°F · Range: 27.7–32.1°C
Current Speed
14.21 cm/s
Direction: SW (230.7°)
Chlorophyll-a
0.044 mg/m³
Very clear (oligotrophic)
Salinity
35.97 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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