Four Days of Aloha is a celebration of Hawaiian arts and culture starting at Clark College with hula and craft workshops from 9 a.m. to 3:30 p.m. July 25 and 26 and a pa’ina event 5 to 9:30 p.m. July 25. Events in Esther Short Park include the Hapa Haole Hula Competition, 4 to 9:30 p.m. July 26; ho’ike event from 10 a.m. to 5 p.m. July 27; Concert in the Park from 6:30 to 10 p.m. July 27; and Celebration of Cultures from 10 a.m. to 5 p.m. July 28. Registration is required for the workshops. Tickets are are required for most concerts. Visit 4daysofaloha.com for the complete workshop schedule, concert line-up and ticket details.