Best caves around Alkham are primarily man-made underground features and former quarries. Alkham is situated in the Kent Downs, an Area of Outstanding Natural Beauty characterized by chalk downs and distinctive dry valleys. While natural caves are not prominent in Alkham itself, the wider Kent area offers several notable underground sites. These locations provide insights into local geology, history, and human endeavor.
Last updated: June 19, 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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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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Impressive contemporary witnesses of past war history
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The complex belongs to the National Trust and with a membership card you get free entry into the World War II tunnels that were driven into the cliffs.
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Around Alkham, you'll primarily find fascinating man-made underground features and former quarries, rather than natural cave systems. These sites offer a rich historical perspective, having been used for various purposes over centuries, from mining to wartime shelters.
Yes, several significant WWII sites are nearby. You can explore the Fan Bay Deep Shelter, a series of tunnels carved into the white cliffs of Dover that housed an artillery battery. Another notable site is the Dover Tunnels – Operation Dynamo Command Centre, an underground command post and hospital from where "Operation Dynamo" was managed.
Yes, Chislehurst Caves are a major attraction in Kent. This extensive labyrinth of man-made tunnels was originally dug for chalk and flint. They have a diverse history, serving as a Victorian showplace, a munitions storage facility, and most notably, an air-raid shelter for over 15,000 people during WWII. Guided tours are available.
Many of the historical underground sites, such as the Dover Tunnels – Operation Dynamo Command Centre and Chislehurst Caves, offer guided tours that are suitable for families, providing an educational and engaging experience for all ages.
Dover's 'Champagne Caves,' also known as Oil Mills West and Finnis Hill Caves, are remarkable brick-lined tunnels believed to have been built by Napoleonic prisoners of war in the 19th century. They were historically used for storing wine due to their consistent temperature and humidity, and later served as an air-raid shelter during WWII.
While the underground sites themselves are man-made, the surrounding area, particularly the Kent Downs, is an Area of Outstanding Natural Beauty. You can find beautiful beach sections below white cliffs, such as at St Margaret's Bay Beach, which also features historical 'pirate caves'.
Yes, the Hosey Caves in Westerham, which are disused stone quarries, are now sealed off and designated a Site of Special Scientific Interest (SSSI). They serve as an important habitat for five different types of bats, and access for human visitors is restricted to protect these colonies.
The Alkham area offers various outdoor activities. You can find numerous easy hiking trails, such as the 'St Radigund's Abbey Ruins loop from Alkham'. For cycling enthusiasts, there are options for gravel biking and road cycling routes, including scenic loops around Kearsney and Deal.
The Avenue Lewis: The Underground Hospital is a man-made monument and historical site. It offers an interesting and worthwhile tour, providing insights into its past use as an underground medical facility.
Visitors often highlight the rich history and unique stories associated with these sites. The guided tours, particularly at places like Fan Bay Deep Shelter and the Dover Tunnels, are frequently praised for being informative and engaging, offering a deep dive into the region's past.
Yes, the Margate Caves offer a journey through history, with evidence suggesting connections to an Iron Age settlement before their development as a mine and their modern life as a visitor attraction. They provide insights into various periods of human activity in the area.
Underground environments typically maintain a consistent cool temperature regardless of the weather outside. It's advisable to wear comfortable walking shoes and bring an extra layer, even on a warm day, to ensure you are comfortable during your visit.


Extend your search for the best caves by checking out these guides of the top ones around Alkham: