Realm of Darkness - Caves of Glass
Caves of Glass is a documentary from director Sid Perou's Realm of Darkness series, focusing on the ice caves of the Austrian Tennengebirge Alps, including the Eisriesenweld and Eiskogelhöhle. It features Austrian speleologist Fritz Oedl, Belgian speleologist Guy Meauxsoone, and Ian "Tommo" White of the Northern Caving Community. First broadcast on Channel 4 on February 15, 1986, it won a Special Mention at the 5th Barcelona International Festival of Esoteric Cinema that same year.
Below are the streaming services currently carrying the movie “Realm of Darkness - Caves of Glass” in Canada, along with how each offers it (subscription, buy, or rent) and a direct link. Licensing differs by market, so availability in Canada can differ from other countries.
Where to watch Realm of Darkness - Caves of Glass in Canada
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Not currently available on the supported providers in Canada.
Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 14 Sept 2026.