The National Park Service is celebrating National Park Week, April 21-29, with ideas and options to make your visit memorable.

There’s no better vacation than a trip to a national park. While iconic parks get a lot of love (and crowds), there are more than 400 sites in the National Park System. That’s more than 400 opportunities for connecting with the outdoors, witnessing an amazing wildlife moment, learning important lessons from history, and sharing memories with friends and family.

As you plan your next adventure, check out 10 alternatives to popular national parks.

1.If you like Yosemite National Park in California, visit Devils Postpile National Monument in California

2.If you like Grand Canyon National Park in Arizona, visit Black Canyon of the Gunnison National Park in Colorado

3.If you like Alaska’s Denali National Park and Preserve, visit Lake Clark National Park and Preserve

4.If you like Great Smoky Mountains National Park in Tennessee, visit Cumberland Gap National Historical Park in Tennessee

5.If you like Death Valley National Park in California and Nevada, visit Great Sand Dunes National Park and Preserve in Colorado

6.If you like Mount Rainier National Park in Washington, visit North Cascades National Park in Washington

7.If you like Badlands National Park in South Dakota, visit John Day Fossil Beds National Monument in Oregon

8.If you like Bryce Canyon National Park in Utah, visit Canyonlands National Park in Utah

9.If you like Gettysburg National Military Park in Pennsylvania, visit Antietam National Battlefield in Maryland

10.If you like Maine’s Acadia National Park, visit Isle Royale National Park in Michigan