ULTRA MARATHON SWIM · 48 KM
Unsheltered · 48 km
Aroeira → Longa. Solo or a relay of 2, 3 or 4 swimmers.
Unsheltered follows the ocean side of Ilha Grande, from Aroeira to Longa: 48 km with stretches exposed to the open sea.
That is why sea conditions weigh on the call to embark. BISA does not confirm a swim when the forecast for the open-sea stretches shows waves above 1.2 metres or sustained winds above 10 knots.
On the ultra marathon routes, the swim may go through the night. Safety lights for night visibility are part of the standard equipment.
The route in numbers
- Distance
- 48 km
- Start
- Aroeira
- Finish
- Longa
- Formats
- Solo or a relay of 2, 3 or 4 swimmers
- Pace swimmer (solo)
- Up to 5 one-hour swims
- Relay leg
- 60 min per swimmer, fixed order
- Equipment
- Standard, no wetsuit
Who has swum this route
Figures from the BISA swim log. The fastest time in a selection is a reference, not a ratified record.
- completed swims
- 8
- solo
- 5
- relay
- 3
- since
- 2021
- Fastest solo time logged
- 13 h 34 min 20 s · Marcos Campos · Mar 16, 2023
- Fastest relay time logged
- 13 h 19 min 39 s · Eric Nakumo, Luis Felipe Batelochi, Thiago Naves · Jun 24, 2023

Ana Paula, Erica Santos, Izabela Rodrigues, Ale Rodrigues · Apr 24, 2023 · From Daniel Righetti’s archive 
Raphael Maia · Oct 27, 2022 · From Daniel Righetti’s archive 
Joana Jahara, Marlus Porciuncula, Paulo Costa e Tulio Ricardo · Sep 28, 2021 · From Daniel Righetti’s archive
Most recent completed swims
| Date | Swimmer or team | Time |
|---|---|---|
| Jun 24, 2023 | Eric Nakumo, Luis Felipe Batelochi, Thiago NavesRelay | 13 h 19 min 39 s |
| Apr 24, 2023 | Ana Paula, Erica Santos, Izabela Rodrigues, Ale RodriguesRelay | 14 h 19 min 02 s |
| Mar 16, 2023 | Marcos CamposSolo | 13 h 34 min 20 s |
| Oct 27, 2022 | Raphael MaiaSolo | 15 h 57 min 15 s |
| Sep 28, 2021 | Joana Jahara, Marlus Porciuncula, Paulo Costa e Tulio RicardoRelay | 17 h 29 min 31 s |
Other routes
- 12 kmFuga da IlhaAbraão → Praia do Engenho (Portogalo)Solo only
- 16 kmChallengeFreguesia de Santana → PousoSolo or two-person relay
- 22 kmBay CrossingPraia dos Meros → Pouso de CajaíbaSolo or a relay of 2, 3 or 4 swimmers
- 25 kmThe PassageLopes Mendes → Praia do Cazuza (Portogalo)Solo or a relay of 2, 3 or 4 swimmers
- 37 kmShelteredMeros → AbraãozinhoSolo or a relay of 2, 3 or 4 swimmersultra
- 76 kmCompletePalmas → PalmasSolo or a relay of 2, 3 or 4 swimmersultra
Go deeper
- Marathon swimming in BrazilOpen water marathon and ultra marathon swims on Ilha Grande, Brazil: seven routes from 12 to 76 km, solo or relay, under MSF-aligned rules with escort boat and official observer.
- Rules and ratificationBISA rules for marathon swims on Ilha Grande, aligned with the Marathon Swimmers Federation: standard equipment with no wetsuits, official observer, relays, pace swimmers, sea conditions and ratification.
- English Channel and Oceans SevenCompare BISA's Ilha Grande routes with the English Channel and the Oceans Seven: distances, no-wetsuit rules, escort boat and observer. Long swims in Brazil during the northern off-season.
- Marathon swim preparationWhat BISA requires for a marathon swim on Ilha Grande: medical and training certificates, feeding from the boat, pace swimmers, crew on board and swimming through the night.
BISA · ILHA GRANDE
Want to swim Unsheltered?
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