Before revision: Cataphiles often descend for a day, a night, or perhaps a week to explore, photograph, paint murals, create maps, clean up rooms, and dig chatières ( ventilation channels ).
After revision: Cataphiles often descend for a day, a night, or perhaps a week to explore, photograph, paint murals, create maps, clean up rooms, and dig chatières ( very narrow tunnels, that one can only crawl through ).