PYP thread to disucss details.
Americaâs Best Idea â the national parks â gets even better this summer with three fee-free weekends at more than 100 national parks that usually charge entrance fees*.
Mark your calendars for fee-free weekends this summer:
June 20-21, 2009 (Fatherâs Day weekend)
July 18-19, 2009
August 15-16, 2009
More details about how to save inside the park are included, too.