Poliwrath River

 River (Japanese: ニョロボンリバー  River) is a dungeon in Pokémon Super Mystery Dungeon that is located on the Water Continent. It is unlocked after completing Nectar Meadow. During 's Connection Orb mission, the stairs behind the locked door can be accessed, which lead to Headwater Hollow.

The first time the undefined and their partner visit it is after leaves Serene Village without his Connection Orb in Chapter 6. There is a boss battle on the first visit.

In other languages
Quappo-Flüsschen Rivière Tartard ニョロボンリバー 蚊香泳士河