British explorers map out 'never-ending' cave network underneath Borneo jungle- R6 N+ u( H0 h$ r4 h1 c8 Z
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Making a splash: Expedition leader Tim Allen inspects the 'Shower Head' - a calcium-formed funnel which transports rain water from the surface into caves underneath Gunung Mulu National Park, in Sarawak, Borneowww.tvboxnow.com& a3 |, i! E- R) p
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. _/ g7 X, g' ~2 S2 p9 q% X# R- kwww.tvboxnow.comLeaving a mark: Andy Eavis compares his hand size to ancient prints left in Black Hands Cave |