coralreef.noaa.gov · Official
Official NOAA feature story referencing Cayo Diablo reef exposure and wave action.
Dive Spot Guide•
Cayo Diablo
Boat-access Cayo Diablo reef with turtles and clear water.
Scuba DivingSnorkelingBoatBeginner
Reef
Local operator required
Use a local Fajardo boat operator; the site is a weather-sensitive boat outing with no shore entry.
Fajardo boat dive on the Cayo Diablo cays with shallow coral, calm-water windows, and weather-sensitive access.
About Cayo Diablo
Cayo Diablo is a boat-accessed Fajardo reef site with shallow coral heads, sea fans, and an easy profile that works well for calm-day scuba and snorkeling. It is known locally for turtles and other reef life, but east-coast swell still matters, so plan it with a local operator and a conservative sea forecast.
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Research Estimate At Cayo Diablo
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 8m
AccessModerate entry effort
CoralHealthy coral
Aquatic LifeExceptional variety
FacilitiesLimited facilities
Crowd / PopularityFew visitors
CurrentLight current
SurgeLight surge
Where Is Cayo Diablo?
This spotNearby spots
Community sourced coordinates.
Cayo Diablo Planning Details
Depth range, seasonality, and planning context.
Reported Depth
1.5m - 14m
Depth Note
Shallow boat reef with snorkel water around 5 ft and diver water around 45 ft; some guides describe the main profile around 13-15 m.
Best Season
December through April for calmer dry-season boat windows, with other months workable when swell stays down.
Typical Conditions
Shallow coral reef with controlled currents, clear-water windows, and enough swell exposure that trips can get skipped on rough east-coast days.
Safety & Access At Cayo Diablo
Hazards, restrictions, and access requirements.
Key Hazards
Boat trafficSurgeWaves
Safety Notes
Treat swell and weather as the go or no-go factor, keep surface awareness around the boat, and follow local guide instructions closely.
Access Restrictions
Boat access only from Fajardo; no shore landing and trips depend on sea conditions.
Legal Notes
Follow local reef rules, the boat briefing, and normal no-touch coral practices.
Local Intel For Cayo Diablo
Community notes to help plan your visit.
Scuba Diving
A shallow reef boat dive with easy coral structure, clear-water windows, and a strong beginner-to-intermediate fit on calm days.
Freediving
The shallowest sections make calm-day breath-hold exploring possible, but the site reads more naturally as a snorkel-and-scuba boat dive.
Snorkeling
Snorkeling works well on the shallow, calmer side of the reef and is one reason the site is popular.
Chill / Non-diver
Not a casual hangout; this is a planned boat outing to an offshore reef.
Cayo Diablo Dive Conditions Planner
Use the planner to scan this week, inspect today in local time, and understand how exposure shapes conditions at Cayo Diablo.
Current Snapshot
No data
🌥️Variable
Sunrise
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Time
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Sunset
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Surface / Entry
Wind No data · Tide No data
Sea State
Swell No data · Period unavailable
Visibility Outlook
Rain chance No data
Wind
No data
Swell
No data
Exposure Profile at Cayo Diablo
Directional shelter context for incoming swell.
Exposure Note
Hourly forecast data is not available yet.
Wildlife at Cayo Diablo
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Cayo Diablo
Community dive logs and visit reports for this site.
No Dive Logs Yet
Be the first to log a dive at this spot and share your experience!
Dive Spot Log Averages At Cayo Diablo
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility8m
Activity
No dive activity logged yet.
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Cayo Diablo Guide - Frequently Asked Questions
Planning answers for access, conditions, timing, and site logistics.
Cayo Diablo Guide - Sources and Updates
Last Updated
Research Sources
drna.pr.gov · Official
Puerto Rico DRNA coral-reef communities report including Cayo Diablo in the natural-reserve context.
www.puertoricobeachfinder.com · Directory
Directory-style beach page describing Cayo Diablo as boat-only with limited facilities and low crowding.
www.puertoricotravel.guide · Tourism
Puerto Rico travel guide describing El Diablo / Cayo Diablo as an offshore site with coral heads, sea fans, and boat access.
www.roughguides.com · Travel
Independent east-coast travel guide describing Cayo Diablo as a popular dive/snorkel site with swell sensitivity and clear water.
www.signaturedives.com · Operator
Operator page describing the Fajardo boat ride, shallow profile, coral, turtles, rays, barracuda, and typical visibility.
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