Washington State Parks has announced the following free days, when the Discover Pass will not be required to visit a state park. 

2018 State Parks Free Days

• Jan. 1 — First Day Hikes; New Year’s Day
• Jan. 15 — Martin Luther King, Jr. Day
• March 19 — State Park’s 105th birthday
• April 14  — Spring day
• April 22 — Earth Day
• June 2 — National Trails Day
• June 9 — National Get Outdoors Day
• June 10 — Fishing Day
• Aug. 25 — National Park Service 102nd Birthday
• Sept. 22 — National Public Lands Day
• Nov. 11 — Veterans Day
• Nov. 23 — Autumn day

Please note, free days apply only to day use (not overnight stays or rented facilities), A Discover Pass will still be required on these days to access lands managed by the Washington State Department of Natural Resources and the Washington Department of Fish and Wildlife.