Anhatomirim Environmental Protection Area, Environmental protection area in Governador Celso Ramos, Brazil.

Anhatomirim Environmental Protection Area covers coastal waters off Santa Catarina with remnants of Atlantic Forest, mangrove swamps, and shallow sandbars. The landscape shifts between forested shorelines and open water channels lined with seagrass beds.

The area was created by Decree 528 on 20 May 1992, at the request of environmentalist André Freysleben, and is named after Anhatomirim Island, where the Portuguese built the Fortaleza de Santa Cruz de Anhatomirim in 1735. That fortress later served as a political prison under Floriano Peixoto. In 2010 the area's status blocked the OSX shipyard project, and in 2013 it received its management plan.

The area's name comes from Anhatomirim Island, where the Portuguese built a fortress in 1735. Local artisanal fishing communities still harvest white shrimp, corvina, mullet and berbigão clams in the protected waters, and their catches supply the region's economy. The 2013 management plan was drawn up with community participation, setting zoning rules that involve the fishermen directly.

Visitors should seek local advice when exploring by boat or on foot, as tides and weather change rapidly in this coastal zone. Early morning and late afternoon offer the best times for spotting wildlife.

The dolphin here is the Guiana dolphin (Sotalia guianensis), called boto-cinza locally, not a freshwater tucuxi; until the 2000s it was classed as a subspecies of Sotalia fluviatilis. A 2013 survey counted 50 to 100 individuals living permanently in the area, about 1.5 m long and 42 kg, feeding on fish also caught by local fishers.