Rio Jucu is a river flowing through Espírito Santo state in eastern Brazil, originating within the state and emptying into the Atlantic Ocean at Vila Velha. The river's estuary sits within the Jacarenema Ecological Reserve, a protected conservation area covering 307 hectares (760 acres) in the city of Vila Velha. This lower reach transitions through a rich mangrove ecosystem before meeting the sea, creating a dynamic estuarine environment that supports a diverse mix of coastal and inshore fish species. The river draws anglers interested in targeting a variety of tropical sportfish, from hard-fighting jacks to prized snook and permit, all within reach of the greater Vitória metropolitan area.