An annual festival to celebrate the first day of summer and the setting sun alignment with the effigy mound. Visitors can enjoy vendors, educational booths, lectures, and workshops on history, ancient knowledge, traditional skills, and some summer fun! End the day with a guided hike through Serpent Mound Park and then come back to Soaring Eagle Retreat for some open drumming under the stars (Friday) or listen to a open mic/jam session in the main tent on Saturday.