Gruta do Lago Azul, Bonito

4.6
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 .
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Gruta do Lago Azul Reviews
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TripAdvisor Traveler Rating 4.5
5,713 reviews
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4.7
TripAdvisor
  • The tour is conducted with a guide, but it's only worth it if the day is sunny, otherwise you won't see the Blue Lake, central point of the tour. Actually it's blue by an optical illusion. Worth it, but the cost X benefit is questionable.
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  • Cave beautiful! Worth blue waters! Unforgettable!! Very organized and thoughtful! Explain very well about the cave
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  • The Gruta do Lago Azul is the Beautiful postcard! To unveil its charms have open hearts to contemplate this spectacle of nature that is ours, and needs to be preserved. To get the attraction, a small trail guided by guides makes you get in the mood "of the meeting to the unknown" ... to get a beautiful Lake makes you realize just how much God is wonderful!
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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

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Where to stay in Bonito

The main town in Bonito provides a good range of accommodations to suit diverse tastes and budgets, with everything from luxury resort-style hotels to backpacker-friendly hostels dotting the gridded urban area. Heading east out of the main town, a few remote pousadas (guesthouses) lie along the course of the Rio Formosa. Pre-booking is essential, particularly during peak season (July and December to March), because of the relatively small number of options available for an ever-growing demand.
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