Exploring an international climbing area is exciting: unique rocks, new landscapes, and different cultures. The not-so-exciting part? Flying there in a cramped airplane on that interminable 10-plus-hour ride. Heidi Wirtz is a pro climber and frequent flier who travels the globe on climbing adventures; she also leads yoga-and-climbing retreats to destinations like Kalymnos, Greece, through her company Earth Play Retreats. Here, Wirtz, our instructor for Climbing’s Yoga for Climbers online course, offers some tips on how to make your next international trip as efficient and comfortable as possible.