Related Clues:
- Gives in, so to speak
- Grottos
- Beatles' early location has special chambers
- Bedrock dwellings
- Old painting sites
- Bat abodes
- Bats' underground homes
- Very dark Jack's Mannequin song?
- Studios, at times
- Jack's Mannequin song for spelunking?
- Studios?
- Studios feel like them, at times
- Succumbs to pressure
- Spelunking spots
- Places for Neanderthals