| Site of Special Scientific Interest | |
| Area of Search | Merseyside |
|---|---|
| Grid reference | SJ251831 |
| Interest | Geological |
| Area | 1.2 hectare |
| Notification | 1977 |
| Location map | Natural England |
The Dungeon is a 1.2 hectare Site of Special Scientific Interest (SSSI) situated 1 mile north-west of Heswall, on the Wirral Peninsula, England. The site was notified in 1988 due to its geological features which show the Tarporley Siltstone Formation of the Mercia Mudstone Group.