Underground Worlds

Yesterday

Saturday 23 December 2023  01:00 - 02:00 (60 mins)
Ireland's Underground Alcatraz: Exploring hidden defences that have kept Cork Harbour, in Ireland, safe for over 400 years. Plus, a former submarine base in the fjords of northern Norway. [S,AD]

Underground Worlds (Yesterday) Saturday 23 December 2023 01:00 - 02:00