The sun sets over the Saguaro National Park Rincon Mountain District, Thursday Oct. 8, 2015, Tucson, Ariz.

Admission to all National Park Service sites in the nation will be free this weekend, April 15-16, and next weekend, April 22-23, in celebration of National Park Week.

That means visitors won’t have to pay the usual $15 per vehicle admission at Saguaro National Park’s units east and west of Tucson on those weekends.

Other upcoming free days at national parks include Aug. 25, the birthday of the National Park Service, and Sept. 30, National Public Lands Day.


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