Grand Canyon Nation­al Park, Arizona

Pho­to: Nation­al Geographic

Fresh on the heels of Nation­al Parks Month, Nation­al Geo­graph­ic Adven­ture Mag­a­zine has com­piled a list of the 20 most leg­endary nation­al park day hikes. Each nation­al park has its own unique beau­ty: abun­dant wildlife, moun­tains, streams, lakes, and forestry. But these fea­tured trails are scenic jour­neys that once-in-a-life­time trips are built on.

Here in the office, we had a hard time decid­ing on just one for our adven­ture buck­et list. How about you? If you could pick just one, which would it be? Share with us on Face­book or in com­ments below, and we’ll award an answer with Clymb credit.