2 Season
20 Episode
Underground Worlds - Season 2 Episode 6 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.
- Year : 2022
- Country : United Kingdom
- Genre : Documentary
- Studio : U&Yesterday
- Keyword :
- Director :
- Cast :
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