Hidden Earth 2024
Not another Mulu talk. Well ... errr .... yes
30 minute Lecture|Colin Boothroyd

Abstract
In November 2023 a group of roughtytoughty speleologists descended upon Gunong Api. The main thrust of exploration centred around the search for a missing piece of a jigsaw puzzle, but there was also a lot of work done to make the enormous known passages bigger and some scientific work to determine which of bat or bird guano was yummiest.
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