The district of Itaipuaçu covers an extensive coastal stretch of Maricá, featuring a diverse and irregular shoreline. Its beaches are known for stronger waves and sand with medium to coarse grains in some areas. Within the coastal zone, there are restinga ecosystems, patches of native vegetation, and mangroves that form the transition between solid ground and the sea. Itaipuaçu serves as a link between several seaside neighborhoods, creating a continuous maritime landscape.