Duration1 hr, 10 mins
São Miguel Cave (Gruta de São Miguel) is one of the oldest caves in the world, with formations that took millennia to carve. Unlike Blue Lake Cave (Gruta do Lago Azul), which is flooded, São Miguel is completely dry: visitors do not enter water at any point. The spectacle lies in the speleological formations — stalactites hanging from the ceiling, stalagmites rising from the floor, columns where they meet, and coraloids, rarer structures that resemble stone corals. The access is already part of the experience: a 200-meter suspended trail 5 meters above the tree canopies, followed by wooden walkways with viewpoints before the cave entrance, where artificial lighting and flashlights reveal every detail.
──────────────────────────────────────────────────
The cave is part of Vale Anhumas Ecological Park, 18.5 km (11.5 miles) from downtown Bonito, and is close to Blue Lake Cave — another famous cave in the region, but with completely different characteristics. While Blue Lake has a lake inside, São Miguel is a dry cave speleology tour, where the focus is on rock formations shaped over millennia. If the expectation is an underground lake like Blue Lake Cave, this is not the right tour — São Miguel delivers rock formations, not water mirrors.
The transition between the exterior and the underground is gradual and intentional. Visitors first walk above the tree canopies, then advance along elevated walkways with valley views before descending into the cave interior. This progression prepares the eye for what comes next.
The surrounding vegetation blends Atlantic Forest and Cerrado, two biomes that coexist in the region and create a transition landscape even before entering the cave. Those who walk calmly notice how the scenery changes as the path approaches the cave entrance. The park offers a rest area and restrooms at reception, infrastructure that allows you to arrive calmly and leave without rushing.
📍 11.9 miles from downtown Bonito · ⏱ 1h10 · Difficulty: easy
──────────────────────────────────────────────────
The itinerary follows a progression that starts high in the trees and ends underground.
The tour begins on a walkway suspended 5 meters (16 feet) high, cutting through the forest for 200 meters to the first viewpoint. The walk is at a relaxed pace, and your gaze already turns to the valley below. Lockers are at reception — it's worth leaving bags and heavy items before starting, since the route is entirely on foot with no long stops.
From the first viewpoint, the path continues for another 150 meters (492 feet) of walkways to a second viewpoint, with an expanded view of the surrounding vegetation. These are pause points before the descent into the cave, where the pace naturally slows. The wood of the walkways and the sounds of the forest create a sensory transition between the exterior and the underground.
After another 150 meters from the second viewpoint, the visit inside the cave begins. The interior route reveals stalactites, stalagmites, columns, and coraloids under artificial lighting, with complementary flashlights that visitors use to highlight path details. Each formation has a different growth rhythm — some advance millimeters per century, others consolidate faster — and the guide points out the most relevant ones along the way.
The return follows the same path to reception, where there are lockers to store belongings during the tour, restrooms, and a rest area. Those who want to extend their visit can use the available Wi-Fi or organize photos before heading to the next attraction. Parking is free and located next to reception, which simplifies exit logistics.
──────────────────────────────────────────────────
Total route of 500 meters (1,640 feet) before entering the cave (200 m + 150 m + 150 m)
Night and exclusive experience versions of this same attraction exist
The attraction offers Wi-Fi and lockers for belongings during the route
──────────────────────────────────────────────────
This tour suits those who want to observe rock formations at a relaxed pace with guide accompaniment. It does not require significant physical effort — difficulty is classified as easy, and the entire route is structured with walkways and lighting. Families with children aged 5 and up can complete the route without difficulty, as long as the little ones pay attention to the steps.
The minimum age is 5 years. The cave has stairs and sections that can be slippery — people with reduced mobility should consult Bonitour before booking to assess whether the route is suitable. We accompany visitors of all profiles on this tour and we recommend it for those curious about what the region was like millions of years before human presence.
──────────────────────────────────────────────────
"The place is very beautiful! We were welcomed by guide Bela, very attentive and dear, she took us through the entire tour with explanations and lots of information, gave us tips about the city, such a lovely person!! The cave is also very interesting, it starts with an elevated path through the tree canopies and then we enter the cave to see various stalactite and stalagmite formations. On the way out, we even picked mangoes from the tree at the reception entrance. I highly recommend it, easy access location, with restroom and parking infrastructure. We did the daytime tour and next time who knows we'll do the night one to appreciate Bonito's night sky"
— Ana Gavriloff
"Excellent tour. With accessibility for elderly people with ok mobility. You need to go up and down non-standard stairs, and with possibly slippery spots. Some more critical points have handrails. Having someone assisting elderly people with reduced mobility makes everything safer. Beautiful place. Beautiful entrance. Well worth the visit."
— Renan Manozzo Galante
"I was impressed by the excellent infrastructure of the place, even though it's quite far from the city and the highway. The dirt road is in excellent condition, a regular car gets there just fine. Very experienced guide answered all my questions, incredible tour, there's a suspended walkway before entering the cave, we even saw some monkeys along the way, the cave is beautiful, a really different experience, everyone should go"
— Reni de Assis
──────────────────────────────────────────────────
The minimum age is 5 years. For younger children, consult our advisors to find a suitable alternative.
No. Transportation to Bonito attractions is booked separately. Bonitour offers shared transfer, private transfer, and taxi options.
No. Lunch can be purchased separately — some attractions have an on-site restaurant.
Secure payment
Immediate confirmation
Secure payment
Immediate confirmation
