Superagui National Park protects islands, mangroves, estuaries, sandbanks, and Atlantic Forest on the coast east of Guaraqueçaba. It is part of the wider UNESCO-listed Atlantic Forest South-East Reserves and is known for rare wildlife, quiet fishing communities, and long empty beaches.
This is the main reason Guaraqueçaba passes the spare-day test. The experience depends on boat logistics, but the reward is a coast that still feels remote.