| Clue | Source | Date |
|---|---|---|
| Grottoes | Commuter | 15 Mar 2025 |
| Large caves | ||
| Sites for spelunkers | USA Today | 20 May 2024 |
| Can a lot of verse be found in caves? | ||
| Carlsbad __ (New Mexico attraction) | ||
| Luray attraction | LA Times Daily | 24 May 2020 |
| Luray attraction | The Washington Post | 24 May 2020 |
| Underground chambers | Eugene Sheffer | 13 Apr 2020 |
| Carlsbad __ National Park | The Washington Post | 18 Feb 2020 |
| Carlsbad __ National Park | LA Times Daily | 18 Feb 2020 |
| Stalactite sites | LA Times Daily | 30 Nov 2016 |
| Bat abodes | Thomas Joseph | 16 Jan 2016 |
| Stalactite sites | ||
| Milieus for spelunkers | ||
| Sites for stalactites | ||
| Virginia's Luray ___ | ||
| Grottoes | ||
| Stalactite sites | ||
| Stalagmite homes | ||
| Stalactite sites | ||
| Carlsbad sights | ||
| Popular tourist attractions | ||
| Grottoes | ||
| Carlsbad ___ | ||
| Luray et al | ||
| Large dark recesses. | ||
| Carlsbad ___. | ||
| Underground chambers. |