Since 1966 unlimited hydroplanes have been the featured attraction of the Tri City Water Follies. On the last full weekend in July 50,000+ fans watch Eastern Washington’s largest weekend event, where unlimited hydroplanes reach speeds of 200 mph.  Additional activities include an air show, the Miss Tri Cities pageant and the Allied Arts Sidewalk Show (Art in the Park). Feel the thunder as the world’s fastest boats race on the Columbia River!