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Not rated yetGoodWatch scoreSummary
Hundreds of feet beneath the ocean surface and emerald islands of Howe Sound lies prehistoric glass sponge reefs thought extinct for over 40 million years.
Where to watch
Crew
- Directed by
- Nate Slaco
Everyone
Pick a department, or search for a name or a job (“editor”, “stunt”).
Facts
October 31, 2020 · 44 min · Documentary
- Released
- October 31, 2020
- Runtime
- 44 min
- Genres
- Documentary
- Original language
- English
- Available in
- 2 countries








