Mary's Place
Roatán, Bay Islands, Honduras · 12–28m · intermediate · semi
Roatán's most famous dive — deep volcanic crevices draped in gorgonians and black coral, dived single-file.
Conditions today
Retrieved · refreshed hourly
marginal
Marginal — 0.7m effective waves made worse by short-period chop.
Limiting factor: period
- Wave height
- 0.7–1.3m
- Wave period
- 4.7–5.4s
- Wind chop
- 0.4–1.2m
- Sea temp
- 28.5–28.8°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 — 0.7m effective waves made worse by short-period chop.marginal
- FridayMarginal — 0.5m effective waves made worse by short-period chop.marginal
- SaturdayMarginal — 0.5m 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 are marginal today. Raw wave heights run 0.7–1.3 m with a short period of 4.7–5.4 seconds, which will create choppy water that feels rougher than the swell alone suggests. The dive itself descends 12–28 m through the volcanic crevices the site is known for, and you'll work single-file through the gorgonians and black coral. This is intermediate-level diving and calls for steady buoyancy control in the swell.
Water sits a warm 28.5–28.8 °C. Divers commonly log stoplight and striped parrotfish here, along with Atlantic blue tangs, sergeant majors, and bluehead wrasses. Caribbean spiny lobster and four-eyed butterflyfish are often recorded as well. The chop will test your comfort, so make your entry and exit deliberate, and keep tight station with your guide.
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 viride430 sightings- no photoAcanthurus coeruleus322 sightings
Abudefduf saxatilis299 sightings
Thalassoma bifasciatum278 sightings
Scarus iseri212 sightings
Chaetodon capistratus187 sightings
Azurina cyanea163 sightings
Panulirus argus162 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.