Save the Redwoods League and California State Parks are now offering free day-use admission to more than 40 redwood state parks the day after Thanksgiving.

Participating parks include Jedediah Smith, Del Norte Coast and Prairie Creek Redwoods state parks as well as parks further south such as Big Basin Redwoods State Park and Armstrong Redwoods State Natural Reserve, according to a Save the Redwoods League press release.

Passes are available on a first-come, first-served basis according to each park’s capacity. Only one day-use pass is needed per vehicle per park. The pass covers covers day-use admission and parking fees, but does not guarantee a parking space or entry if the park is full due to high demand, according to the press release.

Visitors without passes are welcome, but must pay admission, according to the press release.