PORT TOWNSEND — The first springtime interpretive programs at Fort Worden State Park are set to go this Saturday, with AmeriCorps service members Suzy Elbow and Maggie Baker inviting the public to take part.

They will host these two free activities:

• “Wind: Nature’s Biggest Fan” is a self-guided exhibit on how wind shapes the coastal processes and landforms at Fort Worden.

Visitors of all ages can learn all about interacting with the breeze — swaying like a tree, soaring like an eagle, even making their own sand dunes — in this display, which will be up from 9 a.m. to noon Saturday.

Look for it under a pop-up tent by the beach and near the Port Townsend Marine Science Center portico, on shore at 532 Battery Way.

For more information, email margaret.baker@parks.wa.gov.

• “Art in the Park: Plant Awareness Disparity” is the activity from 1 p.m. to 2 p.m. Saturday.

Participants can learn about the importance of being plant-savvy, and then stick around to make some art.

All ages and skill levels are welcome to come and draw Fort Worden’s eye-catching Pacific madrone tree.

Advance registration is required, so email suzannah.elbow@parks.wa.gov for more information or to reserve a spot.

Elbow, who came to the fort from Portland, Ore., and Baker, who is from Maine, are part of the AmeriCorps service program funded for the second consecutive year by the Friends of Fort Worden State Park.

They’re planning more interpretive programs throughout the season, including activities next Saturday, April 2.

The nonprofit Friends of Fort Worden State Park, meanwhile, also run a volunteer trail maintenance crew, whose members walk the trails and beaches, share information with visitors, report maintenance issues to park staff and collect litter.

For information about volunteering and supporting the Friends of Fort Worden, email suzannah.elbow@parks.wa.gov.