Special events are planned for Martin Luther King Jr. Day today.

Area parks will waive entrance fees in honor of the holiday.

Olympic National Park’s regular entrance fee is $30 per car and $25 per motorcycle. On fee-free days, other park fees, including wilderness camping and campground fees, will remain in effect. The Olympic National Park annual pass costs $55.

No Discover Pass will be needed to visit state parks, which on the North Olympic Peninsula are Bogachiel near Forks, Dosewallips near Brinnon, Fort Flagler on Marrowstone Island, Fort Townsend and Fort Worden in Port Townsend, Anderson Lake State Park near Chimacum and Sequim Bay near Sequim.

The Discover Pass is a $30 annual or $10 one-day permit required on recreation lands managed by State Parks, the state Department of Fish and Wildlife and the state Department of Natural Resources.

The free days apply only at state parks; the Discover Pass is still required on Fish and Wildlife and DNR lands.

For more information, see www.nps.gov and discoverpass.wa.gov.

Here are events set today on the North Olympic Peninsula.

• Martin Luther King Day of Service work party at the orchard at Blue Heron Middle School at 3939 San Juan Ave., at 1 p.m.

• Port Townsend Marine Science Center will host its eighth annual MLK Day of Service from noon to 3 p.m. at the center at 200 Battery Way.

• North Olympic Salmon Coalition will host a work party at Snow Creek Estuary south of Discovery Bay from 10 a.m. to 1 p.m. RSVP for details, including parking, at tinyurl.com/PDN-North-Olympic-Salmon-RSVP.

• North Olympic Land Trust volunteers will work with Port Angeles School District’s AmeriCorps Program on the school garden at Port Angeles High School, 304 E. Park Ave., at 10 a.m.