Watch Underground Marvels Season 2 Episode 5 online free

Run Time: .

IMDb: IMDb 7.1.

Episode name: Irelands Underground Alcatraz .

Air Date: 14 Feb. 2022.

Genre: documentary tv shows.

Episode Info: Exploring hidden defences that have kept Cork Harbour, in Ireland, safe for over 400 years. How did this powerful stronghold became a brutal and terrifying prison. Plus, a former submarine base in the fjords of northern Norway.

Story: British documentary series exploring incredible feats of human endeavour underground, revealing what people have built, where they have built it, how and why. .

Creator: .

Country: .

Cast:

Chris Jarman
Self - Narrator

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Jason Desporte
Self - Caves Historian

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Watch Underground Marvels season 2 episode 5 Online Free,

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