If you go:
When: 10 a.m.-7 p.m., Saturday, Aug. 25, and 10 a.m.-6 p.m., Sunday, Aug. 26. Grupo Atlantico performance between 1 and 2 p.m., Sunday, Aug. 26, at the Forest Stage. Lessons at 4:15 p.m., at the Village Green area.
Where: Tower Grove Park in south St. Louis
How much: Free