The Fan Bay plotting room provided aiming information for the three Fan Bay 6-inch guns. Target data was relayed from the Fortress Command at South Foreland and was processed into precise direction and elevation settings for the guns using an electromechanical computer.

Abandoned and buried for over 50 years, the plotting room was spared the ravages of the elements and vandalism; the entrances lay completely hidden beneath over 1 metre of soil.

The plotting room's rediscovery in late 2017 is a tribute to the tenacity and hard work of the volunteers, and it is presented much as it was found.

Join us for a guided tour of the plotting room, and find out what it did and how it worked. You'll put on your hard hat and head torch and descend the 18 steps of the main access shaft, much as the soldiers did 80 years ago. Make your way past the Battery Command Post, through the heavy steel security doors and enter the main plotting room. Be amazed by the stencilled notices still on the wall, and even the attempts to make the stark bunker feel more like home!

Your friendly guide will tell you the story of the plotting room, from construction to rediscovery, and there'll be plenty of opportunities to ask questions.

We recommend a minimum age of 8 years for children.

Description supplied by the event organiser.