An hour long boat ride from São Luís, two boats in the morning, returning in the afternoon.
- Ruins of church and other buildings.
- Museum devoted to rocket launching site located at military base near Alcântara.
- Igreja Matriz de São Matias.
- Pelourinho of Alcântara. The old slave whipping post; it's the oldest extant one in Brazil.
Reportedly there is some scattered nightlife here Thursdays through Sundays, then completely dead the next three days.