Duration
60 minutes
Series Info
Season 2 Episode 6 of 8
Quick Summary
A strange cave that freezes in summer and melts in winter
About This Program
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
Secrets Underground broadcasts on Discovery Science +1 at 6:00am, Thursday, 25 December 2025. (Subtitles, repeat)
Channel Numbers:
Sky HD685Sky267Virgin379
Production Details
Runtime60 mins
