South Kaibab Trail in Grand Canyon National Park, Arizona

© Roman Khomlyak/Getty Image

A glimpse of the grandest of canyons. Grand Canyon National Park, Arizona

There's no better time to take a hike than today, National Trails Day. This annual day of service brings together nature lovers, government agencies, and businesses to preserve hiking trails for everyone to enjoy. Looking for a stunning spot to stretch your legs? We suggest South Kaibab Trail in the Grand Canyon, seen here. The trail starts with switchbacks known as 'the chimney' that leads to a steep, narrow descent—prepare for an invigorating workout! Fresh air and exertion can boost your mood, improve sleep, increase strength and stamina, and reduce the risk of heart disease. Plus, the change in environment can inspire new ideas in increased creativity.