Local boat operator context for the San Carlos crossing.
Sea-lion boat dive at San Pedro Nolasco with rocky terrain and reef life.
Sea-lion boat dive at San Pedro Nolasco with rocky terrain and reef life.
La Roca Grande is a boat-access dive site at San Pedro Nolasco Island where rocky shelves break into sandy areas and the dive stays comfortably recreational. Sea lions are the headline attraction, but the site also offers mixed reef fish, invertebrates, and a straightforward boat day for divers who want wildlife and easy navigation rather than a technical profile.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
15.2m - 18.3m
Depth Note
Average depth reported as 50–60 ft, with the option to reach greater depth if desired.
Best Season
May to October
Typical Conditions
Warm water, generally better visibility, and mild boat-dive conditions in the warm season; cooler months can still produce good marine-life encounters.
Site conditions, restrictions, and access requirements.
Site Conditions
Safety Notes
Standard boat-dive awareness applies. Give sea lions space and be prepared for visibility that can swing by season.
Access Restrictions
Boat access depends on weather and local operator schedules; there is no formal site closure indicated in the sources.
Legal Notes
Follow local marine-reserve guidance and marina instructions when visiting San Pedro Nolasco.
Community notes to help plan your visit.
Scuba Diving
Average depth is about 50–60 ft, with the possibility to dive deeper.
Freediving
Shallow rocky zones may suit freedivers when conditions and operator guidance allow.
Snorkeling
Snorkeling is common around San Pedro Nolasco, especially near sea lions and shallow rock.
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
Local boat operator context for the San Carlos crossing.
Municipal tourism summary for the island and its diving appeal.
Official tourism listing for the sea-lion day trip to San Pedro Nolasco.
Independent marine-reserve summary with corals, sea lions, and fish.
Traveler visibility range and sea-lion comments for the island.
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Boat dive on San Pedro Nolasco with current, sea lions, and pelagics.

Easy boat dive with sea lions and sandy slopes.

San Pedro Island: sea-lion boat diving off San Carlos.

South Point - San Pedro is an advanced exposed dive with sea lions and pelagics.

Boat-heavy Sea of Cortez diving with sea lions, rays, and pelagics.

Sheltered San Carlos point with easy rocky reef and lively fish.