Diamond Cay
Utila, Bay Islands, Honduras · 8–25m · intermediate · semi
Reef around a small south-side cay.
Conditions today
Retrieved · refreshed hourly
marginal
Marginal — 0.4m effective waves made worse by short-period chop.
Limiting factor: period
- Wave height
- 0.4–0.8m
- Wave period
- 3.7–4.9s
- Wind chop
- 0–0.7m
- Sea temp
- 29.9–30.5°C
Ranges span today's hours. Wave height here is the raw sea state — the rating scales it for how exposed the site is. Semi-exposed — partial protection, so swell is scored at three-quarters of its open-water height.
Next few days
- TodayMarginal — 0.4m effective waves made worse by short-period chop.marginal
- SundayExcellent — calm morning with 0.3m effective waves.excellent
- MondayExcellent — calm morning with 0.3m effective waves.excellent
Each day is scored over its morning dive window, the same as today's rating.
Dive briefing
AI-generated
Conditions here are marginal today. The raw wave height is forecast at 0.4–0.8m with a short period of 3.7–4.9 seconds, which creates choppy conditions that will make the dive a bit lumpy. Water temperature sits at 29.9–30.5°C. You'll be working the reef around the cay at depths between 8 and 25 metres — intermediate-level diving on a semi-exposed site.
Divers commonly log Stoplight Parrotfish, Spotted Eagle Rays, and Schoolmaster Snappers here. You may also encounter Atlantic Blue Tangs, Queen Angelfish, Hawksbill Sea Turtles, Caribbean Blueheads, and Western Atlantic Trumpetfish. The short-period chop will be the day's limiting factor, so come prepared for a bit of working the surge.
Written by Claude (claude-haiku-4-5-20251001) from the rating, forecast, and sightings on this page — it has no other source and cannot look anything up. Treat it as a summary, not as local knowledge.
Commonly seen here
Most-recorded species near this site, ranked by research-grade iNaturalist sightings from divers, snorkelers, and naturalists.
Sparisoma viride84 sightings
Aetobatus narinari70 sightings
Lutjanus apodus67 sightings- no photoAcanthurus coeruleus64 sightings
Eretmochelys imbricata59 sightings- no photoHolacanthus ciliaris59 sightings
Thalassoma bifasciatum54 sightings
Aulostomus maculatus53 sightings
Species come from iNaturalist — research-grade sightings logged by divers, snorkelers, and naturalists nearby. The ranking reflects what people photograph most, not guaranteed abundance. Ask a local operator what's actually being seen. Species names link to iNaturalist for range maps, seasonality and more photos. Photos by iNaturalist contributors under Creative Commons licences — individual credit on hover.
Other sites nearby
Within 25km, closest first — usually the same day's boat.