Key:

1 - Magazine (1890s)

2 - The old garage for the caretakers cottage

3 - The upper 7-inch RML emplacement with remains of the caretakers cottage on top of the emplacement

4 - Observation post (originally c1900 but also used later)

5 - Magazine (1940s)

6 - War Shelter (1940s)

7 - 4-inch gun emplacement (1940s)

8 - Ablutions (1940s)

9 - 4-inch gun emplacement (1940s)

10 - Magazine (1890s)

11 - Engine Room (originally 1890s but also used later)

12 - Approx position of lower 7-inch RML emplacement

13 - Searchlight (originally 1900s but also used later)

14 - Searchlight (originally 1900s but also used later)

15 - Reclamation work done for the Port Company, used for coal storage

Key:

1 - The footprint of the caretakers house

2 - The loading gallery

3 - The observation post

4 - Access shaft down into the tunnel system

5 - Underground room

6 - Cartridge Store

7 - Lantern Access

8 - Powder Store