Lagoa do Saguaçu is a coastal lagoon in Joinville, Santa Catarina, Brazil. The lagoon is a historic waterway that served as a primary route for early settlement, connecting to the Cachoeira River and the bay. For paddlers, the primary access point is the Porta do Mar park pier in the Espinheiros neighborhood, a concrete trapiche installed to facilitate water transport across the lagoon. This provides a formal launch and take-out spot. The water body is tidal, and paddlers must plan around the tide cycle as the receding tide reveals extensive sandbanks, which can become navigational hazards or strand craft. The lagoon's urban waterfront is close to the city center, making it suitable for evening paddles or short trips that do not require extensive travel. The surrounding area features trails, including the Mirante Lagoa Saguaçu trail, which offers viewpoints from the land. The overall character is that of an urban coastal lagoon with historical significance, used for local transportation and recreation. Its proximity to Joinville means paddlers should anticipate potential boat traffic and an environment that blends natural and city landscapes.