A river flowing under a bridge in Animal Crossing: City Folk
A river is a body of water in the Animal Crossing series that begins on one side of the town or island and empties into the sea at the other side. Some towns and islands have a river that splits in two, creating an islet. A bridge can be used to cross rivers easily, and in Animal Crossing: New Horizons, the vaulting pole can be used to cross rivers before the player receives access to construct bridges. Some species of fish can be caught in the river with a Fishing Rod.
In New Leaf and New Horizons, rivers can be shaped differently. They always begin at the east or west of a town, instead of the north. In New Horizons, rivers can be altered by the player with the Island Designer Construction Permit.
The river mouth is the area where the river meets the sea. Some fish can be caught only in this particular spot. In some towns, there may be two or more of these, increasing the chances of catching these fish.
An islet, or river island, is a rare geographical feature consisting of a small island in the middle of a river. Islets have bridges connecting them to each riverbank. The islet's length differs in each game. In Animal Crossing, they are tiny and are not displayed on the town's map. There is also the possibility of two of them being right next to each other. Bridges connecting them to the mainland can be either north–south or northwest–southeast.
In Animal Crossing: Wild World and Animal Crossing: City Folk, islets are larger than in previous games and each one has a signpost, allowing for a villager or player's house to spawn there. Islets are absent in Animal Crossing: New Leaf due to the changes in the river and town's geography, but make a return in Animal Crossing: New Horizons. In Animal Crossing: Happy Home Designer, islets occur on the map. Due to the size of houses, they have to sit on the islet. This can be good for things like castles with moats.
An islet in Animal Crossing
An islet on the town map in Animal Crossing: Wild World
An islet on the town map in Animal Crossing: City Folk
An islet on the town map in Animal Crossing: New Horizons
In Animal Crossing
In Wild World
In City Folk
In New Leaf
In New Horizons