The 18th-century Fort Amherst and nearby Jolly Farm barn were used as filming locations for The Witcher Season 3.https://kentfilmoffice.co.uk/filmed-in-kent/2023/06/the-witcher-series-3-2023/#:~:text=Production%20visited%20Kent%20for%20Series

Fort Amherst is a Napoleonic-era coastal fortress that rises above the river with brick ramparts, gun batteries and shadowed tunnels, a testament to 18th-century military engineering. The site sits beside the rustic Jolly Farm barn, creating a stark contrast between formidable fortifications and rural outbuildings. Its weathered walls and expansive exposure have made it a magnet for filmmakers seeking authentic period atmosphere, and it was used as a location for The Witcher Season 3. Today the ramparts offer a contemplative stage where history and cinema intersect, with visitors tracing the lines of a storied frontier.

Fort Amherst – Historic Courtyard sits at the edge of Chatham's harbor, a commanding 18th-century fortress that once guarded the Medway. Its weather-worn walls, sea-washed ramparts, and intimate courtyard preserve a palpable sense of military life and coastal history. The site gained renewed fame when it featured in The Witcher Season 3, with the nearby Jolly Farm barn doubling as period interiors and the fort serving as rugged exteriors. The mood here blends historic gravitas with cinematic atmosphere, offering a tangible sense of grit, resilience, and decay that translates beautifully to screen.