arrabidaparquemarinho.ualg.pt · Official
Cabo Submarino
Sesimbra cable reef with boat access and rich Atlantic life.
Scuba DivingBoatIntermediate12m - 28m
Deep
Boat-access cable reef in Sesimbra's marine park, with rock formations, moderate current, and concentrated Atlantic reef life.
About Cabo Submarino
Cabo Submarino is a boat-access Sesimbra cable reef built around an old communications line draped over rock formations. The structure concentrates life, with gorgonians, sponges, and plenty of Atlantic fish around the cable and rocks. It is an intermediate dive with moderate current and modest visibility, so it rewards steady buoyancy, good planning, and a calm-weather boat run in the Arrábida marine park.
Safety & Access
Site Conditions
Boat trafficEntanglement riskLow visibility
Safety Notes
Watch the old cable and sharp rock edges, keep line awareness high, and treat the moderate visibility as part of the plan. Boat traffic and current make buddy discipline matter more than usual.
Access Restrictions
Boat access is the norm, and the marine-park setting means you should plan with a local operator and follow site briefing notes before entry.
Legal Notes
The site sits inside the Professor Luiz Saldanha / Arrábida marine park, which is managed as a protected and zoned area. Follow local operator guidance and park rules.
Where Is Cabo Submarino?
Featured Operators
Loading local operators…
Local Intel For Cabo Submarino
Community notes to help plan your visit.
Scuba Diving
Key points of interest are around 20 m depth among rock formations and the visible cable.
Freediving
Freedivers should treat Cabo Submarino as an intermediate boat dive with cable, rock, and moderate-current awareness; calm days and clean trim help.
Snorkeling
Snorkelling is better suited to the wider Sesimbra marine park than to this specific cable reef, which is more rewarding as a dive.
Wildlife at Cabo Submarino
Species commonly reported at this site, with direct links into their wildlife guides.
Research Estimate At Cabo Submarino
Conservative baseline from public research. No community dives logged yet.
Avg. Visibility8m
Access4/5 · Simple entry
Coral4/5 · Healthy coral
Aquatic Life5/5 · Exceptional variety
Facilities5/5 · Excellent facilities
Crowd / PopularityQuite busy
CurrentModerate current
SurgeFlat calm
