Jomblang Cave, a collapsed sinkhole in the Gunung Kidul region outside Yogyakarta, Indonesia, is a gateway to a subterranean wonder. Visitors descend about 165 feet (50 meters) on a rope into the cave, then hike through a tunnel to reach Grubug Cave. Here, sunlight filters through, illuminating a sunken forest that some believe dates back to prehistoric times. The interplay of light and shadow creates a surreal, otherworldly atmosphere, offering a unique and immersive experience for those who venture into its depths.
Travel Themes & Experiences
Julian Sterling
June 15, 2026
