The Santa Catarina Island is surrounded by other 24 islands making a truly archipelago. Some can be visited on day trips, like Campeche Island – to visit the archeological sites and enjoy the beautiful beach, or Ratones and Anhatomirim Islands- to visit the forts.
Arvoredo is the biggest island and considered to be one of the best diving sites in South Brazil. Some other small islands also have diving spots like Aranhas and Xavier islands.