What Is It?: The Gomantong Caves are located in Sabah on Borneo, famous for their valuable bird nests, used in Chinese cooking for centuries, most often in Bird’s Nest Soup. They’re one of the most expensive animal products consumed by people.
Why Do It?: The Black Cave is open to the public and has a boardwalk that loops around its chamber. The experience is family-friendly and provides an interesting look at the cave’s history and geology.
Good to Know: A visit to the cave isn’t for the squeamish as the ground is covered with bat guano – and, there are all sorts of insects like centipedes, beetles and scorpions. While there is a wooden walkway above the approximately ten feet of guano, be sure to wear closed-toe shoes and cover them with plastic to keep them protected.