Backpack Kids Playgroup: 10 a.m. Fridays, Camano Senior and Community Center, 606 Arrowhead Road, Camano Island; for preschoolers and their parents or guardians, features story times, snacks, crafts and more; 360-629-5257.

Cascade Valley Hospital: 330 S. Stillaguamish Ave., Arlington; registration required; 360-435-2133, ext. 4700, e-mail sandib@cascadevalley.org.

Safe Sitter course: Call for times and dates, designed for ages 11 to 13, covers CPR, feeding, diapering, discipline and more, $50; ongoing.

City of Lynnwood: The city of Lynnwood Parks, Recreation and Cultural Arts Department offers classes for youth and families, as well as trips, camps, aquatics and athletic programs for youths. Discounts for Lynnwood residents; 425-771-4030, www.ci.lynnwood.wa.us.

Edmonds Parks and Recreation: Classes for young kids and teens, Frances Anderson Center, 700 Main St., Edmonds; registration required; 425-771-0230, www.reczone.org. All activities take place at Frances Anderson Center, 700 Main St., unless otherwise noted.

Everett Public Library: All events are free and take place at the library locations, unless otherwise noted. Some require registration. Main branch, 2702 Hoyt Ave., 425-257-8030; Evergreen branch, 9512 Evergreen Way, 425-257-8250.

Drop-in playgroup for preschoolers, babies and toddlers, 10 a.m. to noon Fridays, Evergreen branch.

Story time for 2- and 3-year-olds, 10:30 a.m. Tuesdays, main branch; 10:30 a.m. Thursdays, Evergreen branch.

Story time for 3- to 6-year-olds, 10:30 a.m. Thursdays, main branch; 10:30 a.m. Wednesdays, Evergreen branch.

Lynnwood Recreation Center: Various activities, 18900 44th Ave. W., Lynnwood; 425-744-6471, www.ci.lynnwood.wa.us/teens.

Seattle and beyond

Club Heaven: 172 S. Washington St., Seattle; 206-622-1863, www.heavenseattle.com.

Baby Loves Disco play times: 1 to 4 p.m. Saturdays, Dec. 15, Jan. 26, Feb. 23 and March 22, for all ages, children’s toys, snacks and real disco music provided for family’s entertainment; $12 per walking human, available at door or www.babylovesdisco.com.

Northwest Railway Museum: Depot at 38625 SE King St., Snoqualmie; 425-888-3030, www.trainmuseum.org. 10 a.m. to 5 p.m. Thursdays through Mondays. Ongoing: 1890s depot with exhibits and bookstore.

Soundbridge: 10 a.m. to 4 p.m. Tuesdays through Sundays, Benaroya Hall, 200 University St., Seattle; 206-336-6600; $7, $5 kids. Seattle Symphony Music Discovery Center has exhibits, classes and chances to meet musicians. Costs vary; reservations required.

Daily musical storytelling for ages 3 to 9, free with Soundbridge admission; registration required for groups of four or more, limit is 30 children plus their escorts.