Gruta do Lago Azul, Bonito

(5,000+ reviews on the web)
Cave Nature / Park
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. See Gruta do Lago Azul and all Bonito has to offer by arranging your trip with our Bonito trip itinerary builder.
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Reviews
TripAdvisor
  • Prior to visiting the caves a safety briefing occurred. You visit the cave in groups. In my group there was around ten people. During the cave visit there is plenty of time to take in the sight and ta...  more »
  • One of our best attractions in Bonito. Going down to the grotto was well-organized and fun. The tour guide was thorough in her explanation (only in Portuguese but I was to have my x-girlfriend who was...  more »
  • We were the second tour to visit. Tours are limited to 15 and are scheduled 20 minutes apart to void congestion. The blue water is stunning!  more »
Google
  • Unique place. Not all guides speak English. Definitely worth a visit.
  • I stayed in the Visitor Center while the tourists I was with went on tour. Small gift shop, big wait. Is not Russia.
  • The Gruta do Lago Azul is about 1 hour drive from Bonito, mostly dirt road (translation: bumpy ride). It is a very beautiful cave with plenty of stalagmites (^) and stalactites (v). From the reception area there is a short hike to the entrance of the cave and then one descends steps that have handrails except in a few spots. At the bottom one can see the lake and its beautiful blue water. Best time to go: from mid-november to mid-february there is a time when the sun hits the late directly. Usually around 8:30-9:00 AM in the morning. These are the most sought after spots for the cave and I believe one needs to setup a visit at these times months ahead. Tip: Apply plenty of insect repellent on exposed skin. Some women obviously knew about this and came with yoga pants and long sleeves which are an excellent way to defeat the mosquitoes
  • Vale a pena
  • Linda