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Ireland's Underground Alcatraz

Name: Ireland's Underground Alcatraz
Genre: Documentary
Released: 2022-02-14
Duration: 45 min

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.

Aired: Feb 14, 2022 Genre: DocumentaryDuration: 45m Rating: 0 Country: United Kingdom Production:

Seasons

Season 1 Season 2

Episodes

01: Murder Raid Tunnels 02: Grand Canyon's Lost Treasure 03: Cincinnati's Secret Caverns 04: Hotel Bunker of the Apocalypse 05: Mystery of the Kentucky Cave 06: Ireland's Underground Alcatraz 07: Medieval Maze of Secrets 08: Buried Lab of the Black Hills 09: Subterranean Silo Survival 10: Italy's Subterranean Secret