Celebrate the first day of summer. Visit a National Park for free. June 21st is fee-free at over 100 National Parks.
Also many of our 394 National Parks NEVER charge an entrance fee.
Too late to plan a visit for June 21st,? There are more National Park fee-free days coming up. September 24 (Public Lands Day) and November 11-13 (Veterans Day weekend).
You'll find lots of National Park Activities online at howtosmile.org.