Diamond Cay
Utila, Bay Islands, Honduras · 8–25m · intermediate · semi
Reef around a small south-side cay.
Conditions today
Retrieved · refreshed hourly
marginal
Marginal — 0.6m effective waves made worse by short-period chop.
Limiting factor: period
- Wave height
- 0.7–1.1m
- Wave period
- 4.6–5.7s
- Wind chop
- 0–0.9m
- Sea temp
- 28.7–29.3°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 — 0.6m effective waves made worse by short-period chop.marginal
- FridayMarginal — 0.4m effective waves made worse by short-period chop.marginal
- SaturdayMarginal — 0.4m effective waves made worse by short-period chop.marginal
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 effective wave height is small, but short-period chop will make the water feel rougher than the raw swell of 0.7–1.1m suggests. You need intermediate certification for this reef. Water temperature is 28.7–29.3°C.
Divers commonly log stoplight parrotfish, schoolmaster snapper, and Atlantic blue tang over the reef. Spotted eagle rays are often recorded, and you may see hawksbill sea turtles. Caribbean land hermit crabs and blue land crabs turn up regularly in sightings here too.
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.
Blue Land Crab(opens on iNaturalist)CrustaceanCardisoma guanhumi98 sightings
Sparisoma viride84 sightings
Aetobatus narinari70 sightings- no photoCoenobita clypeatus69 sightings
Lutjanus apodus66 sightings- no photoAcanthurus coeruleus64 sightings
Eretmochelys imbricata58 sightings
Aulostomus maculatus52 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.