Coral, sponge, and species mix summary.
Remote Bat Islands pinnacle with sharks, rays, and schooling fish.
Remote Bat Islands pinnacle with sharks, rays, and schooling fish.
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Long boat runs, park fees, and current make this best handled by a licensed Bat Islands operator.
Bajo Negro, also known as Black Rock, is a remote Bat Islands pinnacle inside Santa Rosa National Park, where current can turn the dive from calm to lively fast. The site mixes a steep volcanic wall, black coral and sponges, and a good chance of sharks, rays, barracuda, and dense schooling fish, so it rewards advanced divers who stay composed and watch the water. It is the kind of offshore dive that feels simple only when the boat plan, the current, and the visibility all line up.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
20m - 30m
Depth Note
Recent logs place the working profile around twenty to twenty-two meters, with the pinnacle and slopes dropping deeper off the sides into the low thirties.
Best Season
May through October, with shark season and calmer weather often lining up in that window.
Typical Conditions
Offshore Bat Islands conditions are variable, with current that can change quickly and visibility that can move from decent to murky.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Treat the site as a moving-water offshore dive: keep the group close, control your buoyancy, and avoid overextending the profile when the current picks up.
Access Restrictions
Boat-only access and park logistics make this a planned day trip rather than an easy local drop-in.
Legal Notes
Santa Rosa National Park fees and licensed-boat logistics apply, so plan through an operator that regularly runs the Bat Islands.
Community notes to help plan your visit.
Scuba Diving
Best as a guided pinnacle circuit for advanced divers who are comfortable with current and changing visibility.
Freediving
Not a casual freedive target. The site is mainly for scuba divers who are comfortable with current and variable visibility.
Snorkeling
Not a snorkeling site. The action sits deeper and the offshore conditions can move quickly.
Species commonly reported at this site, with direct links into their wildlife guides.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Coral, sponge, and species mix summary.
Recent operator log with real-world depth and visibility.
Independent Bat Islands summary with shark and ray context.
Season, visibility, and current guidance.
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