The red represents underground features. The grey represents tracks and the Harrington Point Road.

1. Russian scare tunnel system. Including magazine, engine room and living quarters

2. WW2 Searchlight engine room

3. Site of 7-inch RML gun pit, with WW2 building in it

4. Observation post. Possibly originally for RML guns

5. 7-inch RML gun pit

6. Engine Room for old 1900s searchlight

7. 1900s Searchlight emplacement

8. WW2 Searchlight Emplacement

9. 6pdr Gun Emplacements