How to Celebrate National Park Week

This Saturday, April 21 officially kicks off National Park Week, and the National Park Service is celebrating with free admission to all its serviced sites and parks—even the 118 that normally charge entrance fees. Now’s the time to take that long-awaited trip to the Grand Canyon, or check climbing Yosemite’s El Capitan off your #travelgoals wishlist. After all, Earth Day is also this weekend, so get in the spirit and get outside. If you need inspiration, we’ve rounded up a list of 10 parks you should visit while the fees are waived—our editors’ favorite picks, recommendations from a national parks travel specialist, and some off-the-beaten path destinations you might not expect. So, what are you waiting for?