Safety · Destination Guide
Bonito Brazil
Crystal-clear river floats and sinkhole dives in Brazil's karst eco-capital
Updated Jan 23, 2026 • 19 sources
Safety And Conservation
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.
Top Risks
- Primary risk: Overhead environments are serious
- Secondary risk: Cold water can surprise you
- Emergency contact: Police (Brazil) (190)
- Safety overview: Bonito is built on controlled access and conservation.
Dive safety
- Treat sinkhole and cave dives as technical-adjacent environments even when run as recreational experiences.
- Follow guide instructions on line use, lighting, buoyancy, and no-touch rules.
- Do not attempt independent penetration or solo diving.
- Plan conservative profiles, especially if you are diving multiple days. Freshwater depth perception can feel different in ultra-clear water.
- For any suspected decompression illness, stop diving, administer oxygen if available, and contact local emergency services plus DAN for consultation.
- Hydrate aggressively and pace yourself. Long days, rural drives, and multiple water entries can fatigue even fit travelers.
- Bonito has local medical services, and the municipality states the TCA includes mandatory visitor insurance with pre-hospital assistance and ambulance support (daily 7:00 to 19:00) for accidents at licensed attractions.
- For severe trauma or complex care, transfers to larger hospitals in Campo Grande may be required.
- Carry travel insurance that covers adventure activities, plus dive insurance (for example DAN) if you plan to scuba or freedive.
Snorkel and freedive safety
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.
Wildlife and protected areas
- Bonito's model is conservation-first: limited daily capacity per attraction and booking through the voucher system.
- Follow river etiquette: stay horizontal, do not stand, do not touch plants or formations, and never feed fish.
- Respect chemical restrictions. Many operators prohibit sunscreen, lotions, and insect repellent before entering the water.
- Pack out everything. Even small trash can compromise the clarity and wildlife health that makes the region special.
Do Not Do This
Avoid entering when overhead environments are serious. Confirm local briefings before committing.
Emergency contacts
| 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 |