South America / Brazil / Canyoning & caving
Bonito Abismo Anhumas Cave Expedition
Abismo Anhumas · Abismo Anhumas, 23 km from Bonito, Mato Grosso do Sul
Source checked 2026-10-11 · Offering found on source page
Abismo Anhumas is a partially submerged cave near Bonito, reached by a 72-meter electric rappel to a floating deck above a clear underground lake. The operator offers several experience variants: boat sightseeing, floating with snorkel, and scuba diving. Its official Baptism Dive product combines the rappel and boat ride with a first-time scuba experience to a maximum of 8 meters, without requiring a course or prior certification. The cavern is known for submerged limestone cones and exceptionally clear water. The named directory lead is a descriptive label; the operator’s specific product name is The Baptism Dive.
Visit the tour operatorExternal provider. No reservation, current-price claim or affiliation.

What the tour involves
Know the shape
of the adventure.
- 72-meter electric rappel down into and back out of the cave
- Inflatable-boat ride on the underground lake with a guide explaining its rock formations
- Official Baptism Dive variant allows a first scuba experience to 8 meters without prior certification
- Lake visibility is reported by the operator and Visit Brasil as reaching 60 meters
- Duration
- 1 day (operator product listing); Visit Brasil says the activity lasts several hours
- Season
- Confirm directly with operator
- Eligibility / experience
- For The Baptism Dive, the operator states no course or prior certification is required. Confirm age, medical eligibility, and any other current participation requirements directly with the operator.
Follow the source trail.
Tour information: Abismo Anhumas ↗
Additional information source ↗
Photo rights: Operator-owned; reuse permission not established
The exact supplied marketing name ‘Bonito Abismo Anhumas Cave Expedition’ is not the title of the operator's listed dive product. Verification is for the specific, genuine operator product The Baptism Dive at Abismo Anhumas; keep the supplied name only as the directory display name and make the variant distinction clear. Do not imply certified/technical diving: those are separate options. The photo was found embedded in the official Baptism Dive page, but whether it depicts this exact tour variant and its reuse rights are not established.
Sources checked 2026-10-11. Finding an offering online does not establish that dates are currently operating or that places are available.
More adventures in Brazil →