The Icefall Cave (いてだきのどうくつ Frozen Waterfall Cave) is a large cave in Pokémon FireRed and LeafGreen, located on Four Island, the fourth isle of the Sevii Islands, that has a frozen interior and is teeming with Ice-Pokémon. Icefall Cave is also the location where the HM containing Waterfall can be found. Towards the end of the cave, Lorelei will be encountered trying to stop two Team RocketGrunts from stealing all of the Lapras in the cave. To foil their plan, the player must battle one of the Grunts while Lorelei battles the other thug. After they run off, Lorelei will thank the player for helping her defeat the goons. Icefall Cave is the only location where you can find Delibird in FireRed, and Sneasel in LeafGreen, and is also the only area in the game where the player can find a Lapras in the wild.