Safety · Destination Guide
Crystal-clear river floats and sinkhole dives in Brazil's karst eco-capital
Updated Jan 23, 2026 • 19 sources
Bonito is built on controlled access and conservation. Most activities are guided, small-group, and equipment-standardized to keep visitors safe and the rivers clear. The main safety risks are logistical and procedural: fixed schedules, rural roads, cold freshwater, and overhead environments in sinkholes and caves.
Overhead environments are serious
Caverns and flooded caves are not casual sightseeing. Follow your guide's line protocols, light discipline, and depth limits, and do not attempt independent penetration or solo dives.
Cold water can surprise you
Some sinkholes are much colder than the rivers (for example around 17°C at Abismo Anhumas). Bring adequate neoprene and warm up between sessions.
Do not stand or touch the riverbed
Bonito's clarity depends on delicate limestone systems. Standing up kicks silt and can damage formations. Stay horizontal and let the current move you.
Rain changes logistics
In the wet season, rural access roads can be muddy and some rivers can lose clarity after storms. Build buffer time and keep your schedule flexible.
Do Not Do This
Avoid entering when overhead environments are serious. Confirm local briefings before committing.
| Contact | Role | Phone | Availability |
|---|---|---|---|
| Police (Brazil) | Emergency police assistance | 190 | 24/7 |
| SAMU (Brazil) | Medical emergency ambulance dispatch | 192 | 24/7 |
| Fire Department (Brazil) | Rescue and fire emergency response | 193 | 24/7 |
| DAN Emergency Hotline | Diving medical consultation and evacuation assistance | +1-919-684-9111 | 24/7 |
| COMTUR Bonito | Tourism council contact (non-emergency) | +55 67 3255-2160 | Business hours |