Seventy‑five feet beneath The White Cliffs of Dover lies Fan Bay Deep Shelter: a web of bomb‑proof tunnels carved through chalk after Winston Churchill demanded artillery that could dominate the Channel. 

During the Second World War up to 185 coast-gunners tried to sleep here between shifts on Mk VII guns that hurled shells from Britain towards France, 21 miles away.

A surviving narrow hospital bay, generator room and rows of bunk frames, along with pencil graffiti - service numbers, football pools coupons, rough poetry - humanise a fortress built for endurance. Every corridor still channels the distant percussion of artillery and the relentless hum of duty.

Closed in the 1950 and later filled with rubble, the shelter slept until 2012, when National Trust archaeologists and volunteers removed 100 tons of debris by hand to reveal a time‑capsule of wartime life. Fan Bay now stands as both memorial and classroom, inviting each visitor to trace the fragile line between vulnerability and resilience etched into Britain’s shoreline.

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Host: James Grasby

Producer: Jesse Edbrooke

Sound Editor: Jesus Gomez

The Fan Bay Tunnels will open to the public for seven days from 20th – 30th June 2025 to celebrate the end of the Wanstone Rediscovered project. 

The gun emplacement and underground magazine will also be available to visit as part of the Fan Bay tour. This is the first time that these areas have ever been opened to visitors. There will also be free, pre bookable tours of the Wanstone Battery site from 11:00 each day 20th – 30th June 2025. Read more about Fan Bay Battery and how to visit: https://www.nationaltrust.org.uk/visit/kent/the-white-cliffs-of-dover/fan-bay-battery---a-brief-history

The National Trust cares for places so people and nature can thrive. Everyone can get involved, everyone can make a difference. Nature, beauty, history. For everyone, for ever. You can donate to us at https://www.nationaltrust.org.uk/donate

Look out for the celebrations of VE Day at Winston Churchill's old home.  https://www.nationaltrust.org.uk/visit/kent/chartwell/ve-day-80-at-chartwell