It is surrounded by the Port of Iquitos, formed by the Amazon, Nanay and Itaya rivers. The city is situated on the left bank of the Amazon River, which provides a characteristic economic life, including trade and transport. The Itaya and Nanay rivers limit the physical expansion of the city in that direction; new development is growing toward the south and there is a slight population density in Downtown Iquitos. Close to Iquitos are a number of lagoons and lakes; Moronococha Lake is a boundary to the city on the west. These features make the city seem like a huge, faux river island.