- Depth range
- 8–24 m26–79 ft
- Difficulty
- Intermediate
- Entry
- Boat entry
- Visibility
- 20–35 m66–115 ft
- Water temperature
- 26–28°C79–82°F
Dive-site story
What makes this site worth diving
On the exposed Mar de Fora side of Fernando de Noronha, Trinta Réis features volcanic rock formations and large underwater boulders in clear Atlantic water. Submerged channels and crevices shelter resting nurse sharks and sand-buried southern stingrays. Ocean swells and tidal currents sweep across the site, requiring drift diving techniques.
Nurse sharks resting under volcanic ledges
Clear Atlantic visibility exceeding 25 meters
Schools of horse-eye jacks and black durgons around submerged boulders
Location
Find the site
Use the map to plan with your operator and confirm the exact entry point on the day.
Plan this dive with care
- Monitor surface swells closely before rolling off the boat.
- Maintain precise buoyancy to avoid surge contact with volcanic rocks.
Seasonality
Best time to dive
- J—
- F—
- M—
- A—
- M—
- J—
- J—
- ABest
- SBest
- OBest
- NBest
- DBest
The Mar de Fora side typically experiences calmer seas and milder swells during late winter and spring.
Marine life
What you may encounter
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nurse sharkGinglymostoma cirratum | Common | ||||||||||||
| Caribbean reef sharkCarcharhinus perezi | Common | ||||||||||||
| Spotted eagle rayAetobatus narinari | Common | ||||||||||||
| Green sea turtleChelonia mydas | Common | ||||||||||||
| Black durgonMelichthys niger | Common |
Marine forecast
Current and next 48 hours
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