Caves around Deal, Kent, are primarily found along the distinctive chalk cliffs of the coastline, characterized by its historical significance. The region offers a mix of natural sea caves and man-made underground structures, providing insights into coastal erosion, wartime defense, and local history. These sites reflect both geological processes and centuries of human activity. Visitors can explore a range of underground experiences within a short distance of Deal.
Last updated: July 3, 2026
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Photography was prohibited at the beginning of the tour, but allowed at the end.
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Unfortunately, photography is not allowed. The tour is interesting and definitely worth taking 😉
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Guided tours by volunteers at the National Trust through these WWII tunnels/bunker. 125 steps down, approx 90 minute tour, only £6. Very factual, learn about the troops who used it, the reason it’s there, and how it was built.
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£6 for an hour’s tour by the National Trust. Well worth it! Go 125 steps underground and tour the tunnels from WWII
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St Margaret’s has a very unusual and rich history for such a small place
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Beautiful stretch of beach along the cliffs.
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impressive descent to the Longdon Bay Tunnel with access to the pebble beach. Great little picnic area (unfortunately a bit littered) with a long ladder down steeply to a pebble beach. Please pay attention to the tides, as the beach may not be accessible at high tide as the ladder is in the water. Furthermore, swimming shoes are recommended because of the pebbles. A wonderful place
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The area around Deal offers a diverse range of underground experiences. You can explore natural sea caves carved into chalk cliffs, such as those at Kingsgate Bay, as well as historically significant man-made tunnels and shelters, including World War II fortifications like the Fan Bay Deep Shelter and the extensive network beneath Dover Castle.
Yes, while not directly in Deal, Kingsgate Bay near Broadstairs features impressive natural sea caves carved into the chalk cliffs. Notable examples include Smugglers Cave, which is over 200 feet long and reputed to have been used by smugglers, and the entirely natural Tower Cave. Accessibility to these can depend on tide times.
Several sites provide a deep dive into local history. The Fan Bay Deep Shelter and the Dover Tunnels – Operation Dynamo Command Centre offer immersive experiences into World War II defense. Frank Illingworth's Tunnel at Pegwell Bay provides a tangible link to the region's smuggling past. Even St Margaret's Bay Beach has a rich history, including tales of pirate caves.
Yes, the Dover Tunnels – Operation Dynamo Command Centre is categorized as family-friendly, offering engaging guided tours that bring history to life. Exploring the beach and 'pirate caves' at St Margaret's Bay Beach can also be an exciting adventure for families, especially at low tide.
The natural caves in the region, such as those at Kingsgate Bay, are primarily sea caves carved into the distinctive white chalk cliffs of the Kent coastline. These formations showcase the effects of coastal erosion and the power of the sea over time. The man-made tunnels, while not natural geological features, are often excavated within these same chalk formations.
The area around Deal is excellent for various outdoor activities. You can enjoy coastal walks that lead to or pass by some of these sites. For cycling enthusiasts, there are numerous options, including road cycling routes and touring bicycle routes. Runners can also find suitable running trails nearby, offering scenic views of the coast and cliffs.
The Fan Bay Deep Shelter involves descending 125 steps underground. It's managed by the National Trust, and guided tours are available for a fee (or free with a National Trust membership). The tours provide a fascinating insight into its role during World War II.
Yes, the region has a strong connection to smuggling. Smugglers Cave at Kingsgate Bay is famously associated with this history, having been artificially enlarged and used by smugglers. Frank Illingworth's Tunnel at Pegwell Bay is another intriguing artificial tunnel believed to have been dug and used for smuggling, where artifacts like an ancient pistol were reportedly found.
Visitors frequently appreciate the historical depth and immersive experiences offered by the man-made tunnels, particularly the World War II sites. The natural beauty of the coastal chalk cliffs and the unique exploration opportunities of the sea caves are also highly valued. Many find the guided tours at places like the Fan Bay Deep Shelter to be very informative and worthwhile.
Yes, you can visit an underground hospital. The Avenue Lewis: The Underground Hospital is part of the extensive tunnel network beneath Dover Castle. This site, along with the underground hospital at the Dover Tunnels – Operation Dynamo Command Centre, offers a poignant look into wartime medical facilities and history.
Yes, St Margaret's Bay Beach is a beautiful beach section located below white cliffs, known for its 'pirate caves'. It's a popular spot for its scenic views and historical connections, offering a unique coastal experience.


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