Eons of dripping water have sculpted a delicate garden of pink-and-white limestone. Keep an eye out for the resident native insects, cave weta! The cave is named after Te Rutuku Aranui, who discovered the cave in 1910 when his dog disappeared inside in pursuit of a wild pig. Tours (45 minutes) lead along boardwalks into tall, narrow chambers. Reservations, made with the Waitomo Glowworm Caves Visitor Centre, are essential.
Cave entrance at Ruakuri Reserve, Tumutumu Rd., 3 km (2 miles) beyond Waitomo Caves Village, Waitomo, 3985, New Zealand