Lago de Acajatuba is a freshwater lake region located near Manaus in the Brazilian Amazon, along the Rio Negro. Visitors can explore the area by canoe, observe wildlife such as pink dolphins, walk along forest trails, fish with local communities, and take part in guided nature excursions. The lake is known for its biodiversity and is surrounded by rainforest inhabited by traditional river communities who practise sustainable livelihoods. It is not a formal national park, but it plays an important role in conservation efforts, with ecotourism contributing to the protection of both aquatic ecosystems and local cultural heritage.