Crazy Creek Falls is a 1.3 mile moderately trafficked out and back trail located near Cody, WY that features a waterfall and is good for all skill levels. The trail is primarily used for hiking, walking, and camping and is accessible from May until October.
Great Trail, keeps going a ways farther back than listed on here. You can go a few more miles up the mountain, for some great shots of Index and Pilot Peaks. The trail does get significantly harder both in elevation and terrain.