Gruta do Lago Azul: Cave with a Turquoise Lake in Bonito/MS

Located 21 km from downtown Bonito, Gruta do Lago Azul is the region's main postcard. Accompanied by a certified guide, you walk 200 m along a rocky trail to the cave entrance and descend around 300 steps with handrails to a turquoise underground lake, spending about 10 minutes on the observation deck. The tour is contemplative, conducted in single file, and lasts 1h30. Sneakers and masks are mandatory, as is showing the PDF voucher on your cell phone. Minimum age of 6 years and minimum height of 1.30 m; the climb back up requires stamina, and the descent is not wheelchair accessible.