Swampy Cave

42 Pokémon can be caught at Swampy Cave in Sinnoh.

Bog-like and thick with moss and plant life, the Swampy Cave is one of the hideaway environments found in Sinnoh's Grand Underground. Entry requires the Explorer Kit, obtained from the Underground Man in Eterna City. Wild Pokémon wander openly through the cavern rather than lurking in grass, and small lakes dot the interior, where Surfing lets the player encounter Pokémon that can be seen swimming there. Oversized rocks and plants force careful navigation.