közel Ḑāyah, Raʼs al Khaymah (United Arab Emirates)
Up-sailing trail with a steep hike up the first hour, then 4 drops (52m / 10m / 35m / 25m) with fixed hangers (all checked & fixed properly). Ropes, mountaineering equipment and experience required. No way around first and third drop. Chains at the last drop so could even go without the rope.