The beach is located within a Marine Extractive Reserve, which aims to protect local artisanal fishing practices and biodiversity.
The name 'Forno' (Oven) derives from the historical belief that the surrounding mountains trap heat, creating higher temperatures in the cove.
The water clarity is partially attributed to the Arraial do Cabo 'upwelling' phenomenon, though the cove's geography keeps it distinct from the colder, nutrient-rich currents nearby.
The trail leading to the beach passes through a former military observation post area with remnants of old structures.
Praia do Forno is a secluded beach located on the Ilha do Cabo Frio, accessible only by boat from the main port of Arraial do Cabo or via a steep hiking trail from Praia dos Anjos. The beach is defined by its crystalline, turquoise waters, which are typically calmer and warmer than those on the mainland due to the cove's protected geography. The underwater visibility is high, making it a primary destination for snorkeling among schools of fish and marine flora. The surrounding landscape features Atlantic Forest vegetation and jagged rocky cliffs. A limited number of rudimentary kiosks operate on the beach, providing food and beverage services. The beach is a protected area, and visitor numbers are managed to preserve the local ecosystem. The sand is fine and pale, contrasting sharply with the deep green of the hillsides.
The viewpoint located along the hiking trail from Praia dos Anjos provides an aerial perspective of the entire cove and its turquoise water.
Bring a mask and snorkel, as the best marine life is visible just meters from the shore.
Wear sturdy footwear if choosing the hiking trail, as the terrain is uneven and steep.
Carry plenty of water and sun protection, as shade on the beach is limited to the areas near the rocks.
Do not rely on finding open chairs or umbrellas during high season weekends; avoid swimming outside the marked zones near boat traffic.
Carry out all trash to help maintain the local conservation status; avoid touching marine life or coral structures while snorkeling.
