Enjoy summer in Greenfield with this FREE kid-friendly activity. Entertainment is geared towards young children and will begin around 11:30 and last for about an hour. Pack a lunch with a blanket or chairs and come to the Amphitheater for a picnic in the park! The following are the dates for 2022 (subject to change). For up-to-date information visit our Facebook page. August 18: David Landau King of Kids Music Upbeat musical programs that keep children engaged and constantly thinking. The kids sing some, move some, act some, dance some, shout just a little bit, and laugh a bunch.