Gerri's Gem
16.3128°N 86.5936°W · wall
Gerri’s Gem is a wall dive site in Roatán, Caribbean.
Overview
Gerri’s Gem is a Roatan Marine Park mooring along the wall system approaching Half Moon Bay, and it earns its name through the quality of its coral coverage and marine life encounters. The wall here is particularly well-adorned with large sea fans that extend outward from the face, catching the light in ways that make this section photogenic throughout the day. Indigo hamlets and shy hamlets, two of the Caribbean’s more elusive small reef fish, have been spotted along the wall. Barrel sponges of unusual size grow at mid-depth, and the wall edge is a reliable place to watch for passing eagle rays and the occasional hawksbill turtle descending from the surface.
Site Information
- Location: Roatán, Caribbean
- Entry Type: Boat dive
- Site Type: Wall dive
- Difficulty Level: Intermediate
- Maximum Depth: 27 meters
Sea-surface temperature and wave height from Open-Meteo Marine (ERA5 reanalysis, monthly averages).
515 verified species observations (258 species) logged within ~11 km of this site between 1911 and 2023, from the Ocean Biodiversity Information System.
- Pterois · lionfish
- Gambusia nicaraguensis
- Palatogobius grandoculus
- Poecilia orri
- Epigonidae
- Lipogramma evides · banded basslet
- Gnatholepis thompsoni · goldspot goby
- Malacoctenus macropus · rosy blenny
- Phaeoptyx
- Lutjanus apodus
- Malacoctenus erdmani · imitator blenny
- Gillellus uranidea · warteye stargazer
Scientific survey records skew toward sampled taxa (molluscs, corals) and do not reflect what you are guaranteed to see on a dive.
Source: OBIS (obis.org), aggregated Darwin Core occurrence records.
Conditions change with the tide and the season. If you have dived this site, share what it was actually like — date, visibility, current, and what you saw. Real, recent reports from divers are exactly what this guide is built to collect.
Send a conditions report ›