Anhumas Abyss rappel descent: Cave without getting wet

Drop into the cave and float across its hidden lake without entering the water

The Anhumas Abyss Contemplation tour in Bonito combines an electric rappel descent and climb into a cave with a boat ride across an underground lake, letting you experience the abyss without water activities. The three-hour outing includes a helmet, lantern, booster seat and government fees. A live guide speaks English, Spanish or Portuguese, and children from age five are welcome. The floating platform gives you a place to photograph the cave's scale and the water below.

The experience

What makes this different from other Anhumas tours is the choice to skip the water entirely. You rappel down into the abyss on an electric system, which handles the mechanical work so you control your descent without needing climbing skill. The quiet boat ride across the wide lake comes next. You drift rather than swim, which means you stay dry and can focus on the cave itself. The floating platform is where most people stop to shoot photos. The scale of the space and the light on the water are what draw the camera.

The three-hour structure gives you time to move without rushing. After the rappel down and the boat crossing, you climb back out on the same electric system. A live guide in your chosen language walks you through the descent, the boat ride and the climb, pointing out the geology and the way the cave holds water. Children from five years old can join. The booster seat and helmet are included. The lantern is yours to carry, so you see what you point it at.

Bonito sits in a region of limestone caves and underground rivers, and Anhumas is the deepest abyss in Brazil. The boat ride crosses a lake that fills the lowest chamber. The water is still and dark, and the cave walls rise around you. This tour is built for people who want to see that scale and take the rappel without the swimming, or who have a reason to stay out of the water. Spinal injuries and pregnancy are contraindications the operator notes. Cardiovascular health matters for the descent and climb, though the guide can adjust pace.

What’s included

• Electric rappel descent and climb.
• boat ride across the underground lake.
• helmet, lantern and booster seat.
• government fees.
• live guide in English, Spanish or Portuguese.

Before you book

Days and timesEvery day except Wednesday and SundayDepartures at 07:30 and 09:00

Book up to2d before

AgesAdult (12 and older) · Child (5 to 11 years) · Under 5: can't be booked

GroupPrivate

Live guideEnglish, Spanish and Portuguese

Meeting point and pickupNo hotel pickup: you go to the meeting point. Ends back at the starting point.

Cancellation and refundsFree cancellation up to 24 h before the start. After that, no refund.

Prices and times updated 8 days ago

Good to know

Low physical effortWheelchair accessibleNot recommended during pregnancyNot recommended with heart problemsNot recommended with back problems

Operated by Abismo Anhumas

Is this one for you?This tour is built for travelers who want to see the Anhumas Abyss and its underground lake but need to stay out of the water, whether for preference, a medical reason or simply to keep dry and focus on photography. The electric rappel removes the climbing skill barrier, so anyone with reasonable fitness can make the descent. The boat ride is passive, letting you observe without swimming.

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Top questions

What languages is the tour guided in?

Live guide in English, Spanish and Portuguese.

Can children come?

Yes. Ticket types: Child (5 to 11 years). Children under 5 can't be included in the booking.

What does the electric rappel system actually do on the descent?

The electric rappel is a motorized system that lowers you into the abyss at a controlled speed, so you don't need climbing experience or upper-body strength to descend safely. You control your pace and can stop to look around. The system brings you back up the same way after the boat ride.

Is the boat ride across the underground lake something I do myself, or does a guide row?

A guide rows the boat while you sit and observe the cave from the water. You stay dry and can photograph the walls and the floating platform where the boat stops.

What if I have a back injury? Can I still do the electric rappel?

Spinal injuries are a contraindication the operator lists, so this tour is not recommended if you have a back condition. The descent and climb put load on your spine even though the electric system does the mechanical work.