Free Admission at Castillo: National Park Week

National Park Week is America's largest celebration of national heritage. It's about making great connections, exploring amazing places, discovering open spaces, enjoying affordable vacations, and enhancing America’s best idea—the national parks! It's all happening in your national parks. Plan your visit by what you want to do or where you want to go.  On these National Park Week weekends, every national park will give you free admission.