Join chefs, educators, experts, and adventurous palates for all things purple sea urchin as sustainability takes center stage for the 4th Annual Urchin Festival. Educational walk, interpretive tidepool talk, open house at the Urchin Ranch, and more. Various times. Friday–Sunday, June 13–15. Mendocino Coast multiple locations. View the full three-day schedule of events at urchinfest.com.