Dive-site story
Trinta Réis sits on the Mar de Fora side of Fernando de Noronha beside the rocky islet sharing its name. Ocean currents have carved its volcanic relief into fissures, swim-throughs, and basalt boulders scattered over a sandy seabed. Exposed to the open Atlantic, surface conditions depend directly on seasonal winds.
Volcanic topography cut with rocky crevices, overhangs, and swim-through channels
Nurse sharks resting beneath basalt ledges
Spotted eagle rays and pelagic species cruising the perimeter
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
The Mar de Fora sees calmer seas and reliable boat access when trade winds ease later in the year.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nurse SharkGinglymostoma cirratum | Common | ||||||||||||
| Green Sea TurtleChelonia mydas | Common | ||||||||||||
| Spotted Eagle RayAetobatus narinari | Seasonal | ||||||||||||
| Southern StingrayHypanus americanus | Common | ||||||||||||
| French AngelfishPomacanthus paru | Common | ||||||||||||
| Great BarracudaSphyraena barracuda | Common |
Marine forecast
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