If you think you know what caves are supposed to look like, prepare to expand your perspective. Stalactites and stalagmites are an otherworldly highlight of the Tú Làn cave system. As one of the oldest caves in the Tú Làn system, Song Oxalis Cave has had tens of millions of years to cultivate the most bizarre formations. There are underground “fields” of miniature stalagmites that resemble seaweed frozen in time, patches of cauliflower, and coral reefs.
Ken Cave is another work of art. Here you’ll find stalactites manipulated by wind to hang like rippling drapes or the claws of mythological creatures. Others hide shielded from the elements and shoot down from the ceiling like long plastic straws.