Under Lavender Town

Under Lavender Town refers to the tunnels beneath Lavender Town containing the graves that have been moved from Pokémon Tower. This location does not appear in any official games, but it's alluded to in Generation II and HeartGold/SoulSilver that there are chambers only Mr. Fuji has access to where the Pokémon Tower memorials now reside. The player can access the tunnels under Lavender Town after winning the Rainbow Badge, through a passage that is the future site of the House of Memories. The southern part of the tunnels connects to Under Saffron City.

Trainers
Team Aqua Grunt
 * Warvee (level 30)

Team Magma Grunt
 * Charvee (level 30)

Trivia

 * The background music for Under Lavender Town is a slowed down version of Lavender Town's theme from Pokémon FireRed and LeafGreen.