The beach is sheltered by an offshore rock formation that acts as a natural breakwater.
Its geography creates a natural swimming pool effect, keeping water temperatures slightly warmer than the open ocean.
The seabed consists largely of sand and scattered rock patches, providing high visibility for snorkelers.
The local ecosystem is part of the remnants of the Brazilian Atlantic Forest (Mata Atlântica).
Historical records indicate this region was one of the first contact points for early European explorers in Santa Catarina.
Lagoinha Beach in Porto Belo is a small, secluded bay protected by rock formations that create calm, pool-like conditions. The water is exceptionally clear, making it a prime location for snorkeling and observing marine life along the rocky coastline. The beach spans approximately 200 meters, characterized by fine, light-colored sand and shallow depths. It is located near the northern edge of the Porto Belo peninsula. The area remains relatively tranquil compared to the larger beaches in the neighboring city of Balneário Camboriú. Natural trails connect the beach to nearby coastal areas, offering views of the surrounding Atlantic Forest. Swimming is safe for families due to the lack of heavy surf. The beach features a backdrop of lush vegetation and private residences rather than high-density commercial development.
The rocky overlook at the northern tip of the beach providing a panoramic view of the bay.
Bring snorkeling gear as the clear water near the rocks is rich with small fish.
Pack snacks and water as there are very limited commercial kiosks directly on the sand.
Visit during low tide to maximize the amount of beach space and exposure of the shallow tide pools.
Attempting to visit during heavy rain, which creates runoff and decreases water clarity; parking on narrow access roads where towing is common.
Carry out all trash; preserve the marine ecosystem by avoiding contact with rock-dwelling species.