The Washington State Parks and Recreation Commission is offering one more free day day this month, when visitors to state parks will not need a Discover Pass for day-use visits.

On Monday, Jan. 15, in honor of the holiday celebrating Martin Luther King, Jr.’s birthday, day admission to Washington State Parks is free.

State Parks free days are in keeping with the legislation that created the Discover Pass—a $30 annual or $10 one-day permit required on lands managed by Washington State Parks and the Washington departments of Natural Resources and Fish & Wildlife. The Discover Pass legislation provided that State Parks could designate up to 12 free days each year when the pass would not be required to visit state parks. The Discover Pass is still required to access lands managed by WDFW and DNR on these days.