The lagoon is an essential water source for a significant portion of Florianópolis, managed by the local utility company.
It is the largest coastal freshwater lagoon in the Santa Catarina state.
The water exhibits a dark, brownish hue due to the high concentration of tannins leached from the surrounding Atlantic Forest vegetation.
It serves as a primary habitat for the Neotropical otter, which is frequently spotted by early morning visitors.
The area contains remnants of historical 'engenhos' (flour mills) that date back to colonial-era agriculture.
Lagoa do Peri is the largest freshwater lagoon on the island of Santa Catarina, covering approximately 5.2 square kilometers. It is designated as a Municipal Natural Monument, serving as a critical reservoir for the island's southern region. The lagoon is fed by mountain streams and features an Atlantic Forest ecosystem protected by strict environmental regulations. It provides a rare alternative to the saltwater beaches surrounding Florianópolis, offering calm, tannin-stained freshwater. The surrounding park infrastructure includes hiking trails, picnic areas, and non-motorized water activity zones. Due to its status as a vital water supply, motorized boats and swimming in restricted zones are strictly prohibited. The site is a sanctuary for the endemic South American otter (Lontra longicaudis) and various species of endemic bromeliads. The surrounding topography creates a natural basin, limiting urban encroachment and preserving the humid forest environment.
The wooden jetty near the main park entrance, providing a wide-angle view of the lagoon against the forested mountains.
Bring insect repellent, as the humid forest environment leads to high mosquito activity.
Pack your own food and water, as commercial options within the park are limited and seasonal.
Use designated trails only to protect the sensitive flora and prevent soil erosion.
Do not attempt to swim in areas marked as water intake zones; do not leave food scraps, as they attract invasive species.
No motorized vessels allowed; do not feed wildlife; pack out all trash to maintain water quality.
