Move Over McCarren Park Pool, Hello East River State Park

88 BoaDrum feat. Gang Gang Dance at East River State Park (08/08/08) More 88 BoaDrum pics on Flickr Have no fear hipsters, your insatiable need for free outdoor concerts will not go unmet this summer: Stephanie Thayer, executive director of the Open Space Alliance for North Brooklyn, a nonprofit group that coordinated last year’s concerts,…