WONOSARI, INDONESIA - SEPTEMBER 11. Indonesian cavers stands under the ray of lights inside Grubug Cave in Wonosari, Yogyakarta, Indonesia on April 04, 2013. Jomblang and Grubug cave is a vertical cave with the deepest 80 meters which was found in 1984.

---

Size: 3678px × 2452px
Photo credit: © Tri Saputro / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: adventure, ancient, beam, bright, calcite, canyon, cave, cavern, caving, cliff, climbing, conservation, dark, darkness, deep, earth, ecotourism, energy, environment, expedition, extreme, gate, geologic, ground, hidden, hiker, lights, limestone, man, minerals, monochrome, mountaineering, natural, nature, outdoor, person, ray, resources, rock, shadow, silhouette, stalactite, stalagmite, stalagtite, standing, stone, sunlight, travel, underground, view, water