Gruta Azul
Also known as: Blue Grotto
Best time to dive
April to June; September to November
Certification & difficulty
Technical - advanced conditions (currents/depth); dive within your training.
Snorkelling
Not a snorkel site - No - hazardous overhead/surge environment
Safety notes
HIGH - documented dangerous reflux/surge currents with at least two reported diver fatalities at this site; narrow passages; sharp temperature drop; overhead environment
Permits & fees
No diver-specific permit fee confirmed; within Reserva Extrativista Marinha do Arraial do Cabo (ICMBio); Ilha do Farol also hosts a Brazilian Navy lighthouse (CAMR) - fee amount: -
Permits and operators change - confirm before booking.
Location
Nearest hub: Arraial do Cabo
This profile is desk research, compiled from public sources - not a first-hand dive report. Coordinates are approximate.