Protected offshore seamount famed for summer mobula encounters.
Protected offshore seamount famed for summer mobula encounters.
The site is reached as a guided boat trip from Santa Maria rather than by independent shore access.
Ambrósio is Santa Maria's signature offshore reserve, a compact seamount in blue water where mobula rays, jacks, barracuda, tuna, and other pelagics gather through the warm-season run. Most dives focus on staying close to the line above the reef and letting the action come to you rather than touring a sheltered reef edge. The site is reached by boat from Vila do Porto and feels exposed to Atlantic conditions, so days are built around weather, current, and skipper judgment. When it settles, Ambrósio delivers one of the island's most reliable big-animal experiences and can also suit confident snorkellers hoping to watch mobulas pass in the upper water column.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
5m - 50m
Depth Note
Public dive listings describe mobula viewing from shallow blue water around the line, with the seamount dropping much deeper below and dive plans adjusted to conditions.
Best Season
July to October
Typical Conditions
Water temperature around/above 22°C in season; high likelihood of mobula encounters on dives.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
This is an offshore blue-water dive where current can strengthen quickly and the day depends on weather and skipper judgment. Stay with the guide and line, and expect plans to be shortened or cancelled when Atlantic conditions are unsettled.
Access Restrictions
Boat access only on operator trips from Santa Maria, with departures and site choice dependent on weather, sea state, and operator availability.
Legal Notes
Ambrósio sits inside the protected marine area off Santa Maria, so diving activity is managed within local reserve rules and operator procedures.
Community notes to help plan your visit.
Scuba Diving
Described as a dive site with frequent large pelagic encounters, especially in warmer months.
Snorkeling
In calm summer conditions, Ambrósio can work for confident snorkellers watching mobulas move through the upper water column near the boat line.
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
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