The city of Laguna is the second-oldest Portuguese settlement in the state of Santa Catarina. Most downtown buildings reflect the early colonial days. Known for its many beaches, Laguna has one of the liveliest Carnival festivities of southern Brazil. Part of the city faces Laguna Imaruí (Imaruí Lagoon), which connects to the Atlantic 5 km (3 miles) farther east. You can drive or hire a boat on the beaches to get to the Imaruí Lake delta, where exploring the imposing Santa Marta Lighthouse and nearby beaches is well worth a day's outing.