Grand Teton National Park Guide, From Experts

"As the founder of The Hole Hiking Experience, Cathy Shill emphasizes preparation and stewardship: I follow her advice to ‘start gently’ at elevation, ‘climb high, sleep low,’ drink lots of water, eat well, and save strenuous hikes for later in the trip; she also stresses checking weather, packing extra layers, and being a respectful visitor to the landscape." - Lydia Mansel Lydia Mansel Lydia Mansel is a writer with more than eight years of experience editing and writing for both brands and online publications—with a particular focus on travel, fashion, and lifestyle. She’s also the founder of the travel site justpacked.com.  Travel + Leisure Editorial Guidelines