Holiday mountain flying special! In episode 3, we speak to senior Nepalese mountain flying captain Binod Puri right after he flies me to Lukla, the "world's most dangerous airport". Tenzing-Hillary airport is an exceptional altiport: a one-way 1.729ft (527m) sloped runway at an altitude of 9.2000ft (2800m) with an 11.7% gradient, a cliff on one end and a stone wall on the other, towering mountains on all sides and unpredictable, fast-changing weather.