Humboldt Plan It GreenHumboldt Plan It Green hosts a yearly conference on Building Green Communities each spring at the Arcata Community Center.
Lost Coast Survivors Clean and Sober Motorcycle ClubLost Coast Survivors is a motorcycle club dedicated to supporting the recovering addict or alcoholic. Eureka.
Arcata Folk Dance FestivalThe Biannual Arcata International Folk Dance Festival takes place on even years the first weekend in April. This festival features workshops in traditional world music, singing and dance.
Godwit Days Bird Migration FestivalThe annual birding festival for Arcata and Humboldt County, with three days of field trips, tours, and workshops with wildlife experts.
Humboldt Math FestivalAnnual Community Celebration of Mathematics - by and for community members, teachers, students, & professionals of all kinds who use mathematics. Activities, Displays, Career & Technical Information.