| Site Name | Area | Last Modified |
|---|---|---|
| COOMBE DOWN QUARRY | The Bath Stone Mines | 15 Dec 2012 |
| COOPER’S HOLE | Mendip | 30 Oct 2025 |
| CORAL CAVE | Mendip | 29 Dec 2010 |
| COW HOLE | Mendip | 23 Apr 2022 |
| COX’S CAVE | Mendip | 13 Jan 2023 |
| CSCC CAVES | Mendip | 15 Apr 2022 |
| CUCKOO CLEEVES | Mendip | 03 Nov 2024 |
| DAIRY HOUSE SLOCKER | Mendip | 31 May 2019 |
| DALLIMORE’S CAVE | Mendip | 28 Dec 2010 |
| DENNY’S HOLE | Mendip | 01 Jan 2005 |