Safety · Destination Guide
Rainforest islands, reef dives, and beach-hike days on Brazil's Costa Verde
Ilha Grande is nature-forward and relatively remote, so safety depends on planning and conservative decision-making. Most diving is boat-based and conditions can shift fast with weather and rain. Use licensed operators, carry surface signaling gear, and treat conservation rules as part of the experience.
Ilha Grande has limited medical services compared to major cities. For anything serious, evacuation to the mainland (Angra dos Reis) is typical, and advanced care may require transfer onward to Rio de Janeiro. For suspected decompression illness, start oxygen, hydrate, keep the diver warm, and contact emergency services. Carry dive accident coverage (for example DAN) and keep your insurance numbers offline on your phone.
Boat traffic at popular swim stops
Swim areas can fill with tour boats and water taxis. Use a surface float when snorkeling, stay close to your group, and do not surface away from your boat during dives.
Cold-front swell and surge
Cold fronts can bring wind and swell that make exposed points unsafe. Plan for operator changes and do not force offshore sites.
Summer storms and lightning
Afternoon thunderstorms can roll in quickly in summer. Schedule boats early and have a backup plan for hiking or town days.
Slippery jungle trails
Rain turns clay and roots into a slip hazard. Use shoes with grip and keep electronics in dry bags.
Costa Verde includes state and federal conservation units, and some zones restrict public access. Ecological stations (such as ESEC Tamoios) are integral-protection areas where public visitation is generally not allowed except under specific educational authorization. Follow captain briefings, use moorings where provided, never anchor on reef, and do not remove shells or organisms. Keep buoyancy tight over rock reefs, avoid touching turtles, and pack out all trash (including micro-trash like snack wrappers and cigarette butts).
Do Not Do This
Avoid entering when boat traffic at popular swim stops. Confirm local briefings before committing.
| Contact | Role | Phone | Availability |
|---|---|---|---|
| SAMU Ambulance Service | Medical emergency dispatch | 192 | 24/7 |
| Military Police | Police emergency | 190 | 24/7 |
| Fire Department | Rescue and fire emergencies | 193 | 24/7 |
| Civil Defense | Weather and disaster response | 199 | 24/7 |
| Federal Police | Federal police assistance | 194 | 24/7 |