National Geographic Speaker Series: A series of six talks from the front lines of exploration returns to Benaroya Hall, 200 University St., Seattle. The season opens with “Into the Arctic Kingdom” by photographer Florian Schulz at 2 p.m. Oct. 22, and 7:30 p.m. Oct. 23 and Oct. 24. More at www.benaroyahall.org or by calling 206-215-4747.
Cycling: Bill Thorness, ride leader for Cascade Bicycle Club, will speak on “Cycling the Pacific Coast: An Epic Adventure on Two Wheels,” 6 to 8 p.m. Oct. 24, Marysville Opera House, 1225 Third St.Doors open at 5:30 p.m. Admission is a $3 suggested donation. More at www.marysvillewa.gov or 360-363-8400.
Green Everett Day: 9 a.m. to noon Oct. 28, Forest Park, 802 E. Mukilteo Blvd., Everett. Help plant hundreds of native trees and shrubs in Forest Park, and ensure that this beloved wooded wonderland continues to thrive into the future. Gather family and friends to celebrate the kick-off of planting season with food and fun. More at https://everettwa.gov.
Free park-ing: Visit Washington State Parks for free on Nov. 11, in honor of Veterans Day. Day-use visitors will not need a Discover Pass ($30 annual, $10 day). There is one more free day this year: Nov. 24, in celebration of autumn. Free days apply only to day-use access by vehicle, not overnight stays or rented facilities. More at www.discoverpass.wa.gov.
Send calendar events to email@example.com.