Jebel jais is a mountain of the North-Western Hajar range in the Musandam Governorate of Oman and also in Ras Al Khaimah, United Arab Emirates. The summit has an elevation of 1,934 m (6,345 ft).
The world's longest zip line opened on the mountain in February 2018. It is 2,832 m (9,291 ft) long, and users travel at speeds of up to 150 km/h (93 mph)