Arvoredo Marine Biological Reserve Adventures

Located approximately 6.2 miles (10 kilometers) off the coast near the city of Florianópolis in the state of Santa Catarina, Brazil, the Arvoredo Marine Biological Reserve encompasses a group of volcanic and granitic islands that harbor rich marine biodiversity. Established in 1990, the reserve covers an extensive marine territory aimed at conserving the fragile ecosystems that include coral reefs, kelp forests, rocky shores, and underwater grottoes. The islands serve as sanctuaries for numerous species, including endemic fish, lobsters, sea turtles, and a variety of crustaceans and mollusks. The reserve is strictly protected with limited human activity allowed, primarily scientific research and regulated ecotourism like scuba diving. Divers flock to Arvoredo for its crystal-clear waters, complex reef structures, and abundant aquatic life, making it one of Brazil's premier dive destinations. Aside from underwater attractions, the reserve supports vital seabird nesting sites and acts as a reference area for marine conservation in the South Atlantic. The marine protection zone extends over 17,900 acres (about 7,240 hectares) and is crucial in preserving the region’s biodiversity against fishing pressure and coastal development. Visitors are drawn by the reserve's remote, pristine nature and the chance to experience a living reef ecosystem largely untouched by pollution or overfishing. Strict regulations maintain the ecological integrity while providing unique educational and recreational experiences in a marine environment seldom found elsewhere in Brazil.