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Bonito

Abismo Anhumas

  • Max depth80 m
  • CertificationOpen water / no overhead
  • Water temperature≈ 18–25 °Cestimated, no reports yet
  • SpecialRopework

Diving and fills

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What it looks like

All 4 videos and posts

Videos and posts

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Other people's footage, not advice: how someone else dives here says nothing about what suits your team. Dive within your training.

The dive

A cave lake where light comes in only through the roof opening. Underwater stand the world's largest known limestone cones.

Profile and sections

A cave lake where light comes in only through the roof opening. Underwater stand the world's largest known limestone cones.

Depth and profile
A lake up to ~80 m deep in one pit, mostly less than 20 m; underwater cones up to ~19–20 m tall.
Configuration
The attraction's gear; water 18 °C, take at least 5 mm.
Who can dive where
  • CaveAt least Open water / no overhead
  • Whole caveConfigurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
  • Whole caveGoes down to 80 m (trimix or deco may be needed) · doesn't decide who may dive
  • Whole caveRopework (SRT) needed
RopeworkEntry or dive feeThrough a dive centre or guide

This is how the planner decides who in your team may dive this cave. Rules your own trip adds (organizer, a mail, the AI) show with your trip.

How to get there

~23 km from Bonito. You go 72 m down through a narrow cleft (electric rappel) and back up by winch; training the day before is compulsory. Dives: discovery to 8 m (no certification) and open water to 18 m (certification needed), only with the attraction's gear. Prices 2022: dive R$1,690.

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Around Abismo Anhumas

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Sources, sharing and disclaimer

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Certification requirements, configurations and trimix depths are estimates for planning. Always check them locally and dive within your training. Compiled from web research (Oct 2026): X-Ray Mag (2020), Melhores Destinos (2023), the websites of Gruta do Mimoso, Lagoa Misteriosa and Abismo Anhumas, viagensecaminhos.com, Catraca Livre (2025), G1 (2011), Correio do Estado (2022), SBE Notícias, USP Revista de Biologia and A Crítica (2026). No reliable coordinates: no pins. Certification and configurations are estimates. Prices change with the season.