Cave of Origin, Meteor Falls, Seafloor Cavern, Shoal Cave, Sky Pillar — 5 locations on the interactive map.
Cerulean Cave, Seafoam Islands — 2 locations on the interactive map.
Blackthorn City, Dark Cave, Ice Path, Mt. Mortar, Mt. Silver, Mt. Silver Cave, Rock Tunnel, Route 28, Route 42, Slowpoke Well, Tohjo Falls, Union Cave and 1 more — 13 locations on the interactive map.
Zubat → Golbat (Level 22) → Crobat (Happiness ≥ 160)