The Canal da Passagem is a coastal channel located within the estuary system of the Santa Maria da Vitória River in Vitória, Espírito Santo. It forms a key part of the larger Vitória Bay estuarine complex, where river, channel, and tidal waters mix. The channel's margins are characterized by extensive mangrove forests, particularly in the northwest region near areas like Ilha do Lameirão, Ilha das Caieiras, Santo André, and Resistência. These mangroves, dominated by red, white, and black mangrove species, stabilize the banks and create a critical transition zone between land and water. The channel's connection to the Rio Santa Maria da Vitória means it experiences the influence of both freshwater inflow and significant marine tides, creating a dynamic brackish environment. The water body is situated in a densely populated metropolitan area, and its sediments are highly anthropogenically influenced. For paddlers, the area offers a unique urban-natural interface with the expansive, protected mangroves of the Ilha do Lameirão Ecological Station nearby. The tidal nature of the channel is a primary consideration, with Instagram posts directly referencing specific low-tide conditions. The channel is used for recreational swimming and is have associated boat traffic, indicated by references to sitting on boats at low tide.