Abismo Anhumas: A Subterranean Wonderland

Abismo Anhumas, located 23 km from Bonito, Mato Grosso do Sul, is a breathtaking flooded cave that promises an unforgettable adventure. Discovered in the 1970s after a forest fire, this geological wonder remained largely unexplored until the 1990s when its potential as a tourist destination was realized. The adventure begins with a thrilling 72-meter rappel down a narrow opening into a vast subterranean cavern. An electric winch system is in place to assist with the descent and ascent. The cave opens into a mesmerizing lake with crystal-clear waters, revealing majestic limestone cones that reach up to 20 meters in height, partially submerged and creating an otherworldly landscape. Visitors can explore the cave's wonders through various activities. Snorkeling provides a clear view of the submerged rock formations, while scuba diving offers a deeper exploration of the underwater environment. For those seeking a more relaxed experience, boat tours navigate the lake, allowing visitors to marvel at the geological formations with the aid of provided lanterns. The water temperature averages around 17°C, and neoprene suits are included with the tour to ensure comfort. Safety is a priority, with trained guides and specialized equipment ensuring a secure and thrilling experience. A training session is required the day before the tour to ensure participants are comfortable with the rappelling techniques. The number of daily visitors is limited to preserve the delicate environment and ensure a personalized experience.