A group of adults exercise in a park

A group of adults exercise in a park. The group is comprised of approximately 20 people, most of whom are dressed in bright colored shirts of green, orange, or blue. They perform synchronized exercises in a wide paved space beneath a large tree, following directions from a pole-mounted speaker. Behind the exercise group is a low brick wall with wooden stairs leading up to it. A small group of individuals is sitting on a bench watching the group exercise. A metal trash bin is near the bench. A checkered pattern is visible on the paving stones in the foreground. The light is diffused and the leaves of the tree overhead provide shade.