Ultimate Tango School of Dance continues its free Tango in the Park series at the Condon Shell. For savvy tangueros and beginners alike, the evening begins with milonga en plein air at 6:30, followed by a one-song performance show/exhibition at 7:15, then beginner lessons from 7:30 to 8:30. Register through the Ultimate Tango website. The series continues weekly through August 27.