Field Day at the Keeper’s House (Registration) Thursday, August 7 3:00 pm - 4:00 pm Ages 3+ Race, play outdoor games, and more on the Old Croton Aqueduct Trail at 15 Walnut Street! Registration REQUIRED — email childrens@dobbsferrylibrary.org, call (914) 693-6615, or stop by the Children’s Room to sign up.