Casinha (Mata de São João)

Casinha (Mata de São João) is a powerful right-hand reef-coral break that’s regarded as a regional classic. The wave is described as consistent and capable of holding size on the right swell windows, with a reef-coral setup where conditions can become unforgiving when you mistime the tide or line choice. At the spot, the bottom is reef/coral with rocks in and around the impact zone. Hazards specifically called out include sharp reef/coral, rocks, and localism; sharks are also mentioned as a risk. Currents are also reported as potentially strong when larger swells arrive, so experienced surfers who can manage power and exposure are emphasized. Surf performance is tied closely to swell direction and tide. The break is reported to work best with South to South-East swell, commonly in the ~1.0 to 3.0 meter range, and it’s best at low to mid tide. On good days, rides are described as typically 50–150m, extending to about 150–300m when conditions line up. Wind-wise, East winds are described as optimal for the right-hand direction, offering a grooming effect. Seasonal context from the available data points to a primary surf period during the colder-month swell season, and the walk-in access near the Projeto Tamar area is also highlighted as part of the on-site experience.