After the brief sojourn to the Kelabit Highlands, I took the short flight back to Miri, and continued with another 2h bus ride to Batu Niah, the nearest town to the Niah National Park, yet another one of Malaysia' Unesco World Heritage Sites, and home to its famous multi-millenia-year old limestone caves. Of course Batu Niah isn't exactly right at the National Park's doorstep, and so it was a hot and humid 3km hike first to the park entrance, followed by another 3km to the caves proper. Apart from being notable and really quite impressive geological relics, these caves have also been home to millions (yes, millions) of swiftlets and bats for decades, if not centuries. Apparently there is some sort of implicit arrangement between the two species, where the bats inhabit the caves during the
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