When: April 21-22, 11 a.m.-5 p.m. 2018
29th Annual St. Louis Earth Day Festival. Saturday and Sunday April 21st-22nd. 11 am - 5 pm. Free and open to the public. Muny grounds in Forest Park. Rain or Shine. Join in this community tradition to learn about sustainable products and services offered by local businesses and organizations, meet area non-profits that share Earth Day values, catch local musical acts and performance art, participate in a number of hands-on educational activities, and enjoy diverse cuisine featuring local, organic, vegetarian, and vegan options.