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Dive Spot Guide•
Cabo Submarino
Sesimbra cable reef with boat access and rich Atlantic life.
Scuba DivingBoatIntermediate
Deep
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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.
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Research Estimate At Cabo Submarino
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 8m
AccessSimple entry
CoralHealthy coral
Aquatic LifeExceptional variety
FacilitiesExcellent facilities
Crowd / PopularityQuite busy
CurrentModerate current
SurgeFlat calm
Where Is Cabo Submarino?
This spotNearby spots
Community sourced coordinates.
Cabo Submarino Planning Details
Depth range, seasonality, and planning context.
Reported Depth
12m - 28m
Depth Note
The site is centered around roughly 14 m of average depth and tops out around 28 m, with the cable visible over rock formations and the main life band sitting in the mid-depth range.
Best Season
Late spring through early autumn.
Typical Conditions
Calm to moderately moving water, with reduced rippling on protected days and moderate visibility in the Atlantic.
Safety & Access At Cabo Submarino
Hazards, restrictions, and access requirements.
Key Hazards
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.
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.
Cabo Submarino Dive Conditions Planner
Use the planner to scan this week, inspect today in local time, and understand how exposure shapes conditions at Cabo Submarino.
Current Snapshot
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Sea State
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Visibility Outlook
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Exposure Profile at Cabo Submarino
Directional shelter context for incoming swell.
Exposure Note
Hourly forecast data is not available yet.
Wildlife at Cabo Submarino
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Cabo Submarino
Community dive logs and visit reports for this site.
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Dive Spot Log Averages At Cabo Submarino
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility8m
Activity
No dive activity logged yet.
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Cabo Submarino Guide - Frequently Asked Questions
Planning answers for access, conditions, timing, and site logistics.
Cabo Submarino Guide - Sources and Updates
Last Updated
Research Sources
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