To celebrate the first day of spring, Riverside Park Conservancy held its annual “Clay Date” – marking the delivery of seven tons of red clay for New York’s only outdoor public red clay tennis courts. Photo courtesy of Riverside Park Conservancy Fresh Red Clay Signals Spring at Riverside Park Tennis Courts For the first time in a while, Riverside Clay Tennis Association staff and volunteers dug their shovels into a huge pile... News 26 Mar 2021 | 02:03