- Original release
- Previous episode S1972E26 - Shadows of Bliss
- Number S1972E27
- Country United Kingdom
- Original language English
- Genre Documentary
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External links
TheTVDB page
IMDB page
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Last update
25 février 2026 - 23:15
on 11 databases
Billion Marsh
This episode of Horizon is about the east coast marshes of America, called the "Wetlands" and the effects of urban development on the wildlife.
Next episode
S1972E28 - Do You Sincerely Want a Long Life?
