- "Hot springs go hand-in-hand with volcanoes. The Ember Spa here, well, I made it years ago. I hewed the pool right out of a gigantic boulder by hand."
- — Old man in Ember Spa, Pokémon FireRed and LeafGreen
Ember Spa (ともしびおんせん, Firelight Hot Springs) is a location on Knot Island that first appeared in Pokémon FireRed and LeafGreen. It can be accessed by entering a small cave opening near the mid-section of Kindle Road. Inside the chasm are hot pools of water that heal the player's Pokémon if the player walks in the center of the sole accessible pool. An old man claims to have dug the whole spa out of a gigantic boulder, and he will give HM06 Rock Smash to the player if conversed.