This weekend marks the 30th anniversary of what is perhaps Pierce County’s slimiest tradition.
Slug Fest at Northwest Trek Wildlife Park celebrates the Pacific banana slug with human slug races, mollusks on display, crafts and other kid-friendly activities.
Slug-bead zipper pull making, the singing of a slug anthem and touring a 50-foot slug tunnel also are on the agenda for visitors.
Naturalists will give presentations throughout the weekend about slugs and answer questions about the creatures and gardening.
When the event started, a slug derby involved actual slugs. Now, humans inch their way through a race track, emulating the creatures, and the slugs themselves are used for educational purposes.
Slug Fest will be held Saturday and Sunday, and is free with admission to Northwest Trek, which is open from 9:30 a.m. to 5 p.m. those days. For more information, visit nwtrek.org.