About this showing of Secrets Underground
A strange cave freezes in summer and melts in winter, and a huge sand dune swallows a small child in an instant. Rob and Stefan explore these mysteries.
Previously on TV
Secrets Underground
Mystery Of The Ice Cave
Previously shown on Discovery .History+ 1 on Fri 9 Oct 2026 at 11:00.
This showing has ended
This showing was on Discovery .History+ 1 at 11:00 on Fri 9 Oct 2026. See future airings below or open the main programme page for the latest TV times.
Airing details
ChannelDiscovery .History+ 1
StartsFri 9 Oct 2026, 11:00
EndsFri 9 Oct 2026, 12:00
Episode / edition: Mystery Of The Ice Cave
SkySky Q / Satellite272Next showing of Secrets Underground
The next currently listed showing is Wed 28 Oct 2026, 04:00 on Discovery .Science.
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