| Lairs |
| Relents |
| Studios |
| Grottos |
| Gives in |
| Grottoes |
| Bat homes |
| Collapses |
| Cries uncle |
| Bats' homes |
| Bat hideouts |
| Dark passages |
| Mammoth et al. |
| Bats' hangouts |
| Primeval abodes |
| Stone-Age homes |
| Stalagmite sites |
| Troglodyte homes |
| Spelunking spots |
| Spelunking sites |
| Bedrock dwellings |
| Studios, at times |
| ___ in (collapses) |
| Concedes, with "in |
| Gives up the fight |
| Old painting sites |
| Stalactite locales |
| Troglodytes' homes |
| Spelunkers' milieu |
| Spelunkers' haunts |
| Collapses, with "in |
| Emulates a pacifier |
| Spelunkers' milieus |
| Rock bottom locales? |
| Spelunkers' hangouts |
| Succumbs to pressure |
| Underground chambers |
| Gives in, so to speak |
| Homes for speleothems |
| Troglodytes' hangouts |
| Hole worlds to explore |
| Speleologist's concern |
| Places for Neanderthals |
| Bats' underground homes |
| Gives in under pressure |
| Speleologists' interests |
| Locales for some paintings |
| Studios feel like them, at times |
| Venues for early human paintings |
| Very dark Jack's Mannequin song? |
| Tourist attractions near Carlsbad |
| Jack's Mannequin song for spelunking? |