Mark your calendar for entry-free days or see if you qualify for free access year-round.

One of the most cost-effective strategies is to purchase theAmerica the Beautiful National Parks and Federal Recreational Lands Pass.

Alternatively, there are several methods for visiting the national parks without paying a dime.

Grand Teton National Park, Wyoming

Bison in Grand Teton National Park, Wyoming.Credit:Alessandra Amodio/Travel + Leisure

Americans and U.S.

Parks do not accept digital versions.

Anyone who volunteers at least 250 hours at a federation recreation site is eligible for the annual pass.