Gruta do Lago Azul, Bonito

4.5
Gruta do Lago Azul enjoys a reputation for its deep blue lake and numerous fossils of large prehistoric mammals, including giant sloths and saber-toothed tigers. Local indigenous people discovered the entrance to the cave in 1924, and were probably the first to set foot inside. The underground lake is over 60 m (200 ft) deep, but the subterranean river that feeds it remains undiscovered to this day. See how the blue water twinkles when touched by the sunlight streaming from a hole in the ceiling. Plan to visit Gruta do Lago Azul during your Bonito vacation using our convenient Bonito holiday planning tool.
© OpenMapTiles © OpenStreetMap contributors
Create an itinerary including Gruta do Lago Azul

Gruta do Lago Azul reviews

Rate this attraction
TripAdvisor traveler rating
TripAdvisor traveler rating 4.5
7,412 reviews
TripAdvisor
  • This morning we went to Gruta do Lago, from Bonito it takes you about 1 Hour to get there by Car, the Tour is about 1 Hour. If you have around 4 left which you don’t know what to do, definitely...  more »
  • Great place, very beautiful to contemplate and learn, and the guided tour is very informative about the place and its history  more »

Plan your trip to Bonito

  • Get a personalized plan

    A complete day-by-day itinerary
    based on your preferences
  • Customize it

    Refine your plan. We'll find the
    best routes and schedules
  • Book it

    Choose from the best hotels
    and activities. Up to 50% off
  • Manage it

    Everything in one place.
    Everyone on the same page.

Popular things to do in Bonito

See all ›
4.7
Duration: 1 hour
4.6
Duration: 2h 30 min
3.9
Duration: 2 hours

Nature in Bonito

See all ›
4.7
Duration: 2 hours
4.7
Duration: 4 hours
4.3
Duration: 1h 30 min
4.7
Duration: 3 hours

Side trips from Bonito

4.7
Duration: 6 hours
3.9
Duration: 2 hours

Adventure in Bonito

4.4
Duration: 2 hours
4.0
Duration: 4 hours
5.0
Duration: 30 minutes
4.4
Duration: 30 minutes

Hidden gems in Bonito

5.0
Duration: 4 hours
3.8
Duration: 2 hours
4.4
Duration: 1h 30 min

Nearby attractions in Bonito

4.1
Duration: 2 hours
4.5
Duration: 4 hours
3.9
Duration: 2h 30 min
4.5
Duration: 2 hours