Free National Park Service Admission on October 27

Why it's worth it: Most national parks charge $30–$35 per vehicle for entrance fees. No purchase needed.

The National Park Service is waiving entrance fees on October 27, so everyone can visit participating national parks for free that day. No coupon or sign-up is mentioned, so just show up at a park that normally charges admission and check the NPS entrance fee page for the current list of parks and details. Fees for extras such as camping, guided tours, and special permits are typically not covered, so confirm with the individual park before you go.