Inside The Secret Forbidden Caves Behind Predjama Castle | Expedition X

Subscribe to Discovery UK for more great clips: https://bit.ly/3wjYPAU The team investigates Predjama Castle, a 12th-century fortress built into a massive cliff with a dark history of robber barons and lightless dungeons. Using advanced tracking technology and acoustic experiments, they uncover the truth behind local hauntings and attempt to communicate with the spirit of the notorious Arasmus Lug. #Expedition X #DiscoveryUK 🇬🇧 Catch full episodes of your favourite Discovery Channel shows on discovery+: https://bit.ly/41DFZTB From Expedition X Season 6 Episode 12. Follow Discovery UK on Twitter: http://www.twitter.com/DiscoveryUK        Watch Discovery UK on SkyQ and Sky+ 125, Sky Glass & Stream 138, Sky Scotland 126, Sky ROI 125, Sky Glass & Stream ROI 134, Virgin Media 177.