The Youth Volunteer Corps invites any 11- to 18-year-old to join the Earth Day Parade on Saturday. Corps members will ride their bikes in the parade, which begins at 11 a.m. at Seventh and Massachusetts streets and ends at South Park. Preparations for the Earth Day festival will start at 8:30 a.m. on Saturday at South Park. If interested in participating, call Rachael at 865-5030 or send e-mail to youth@rhvc.org.