Noon – 1 pm STEMsday – Superpowers & Gravity Ages: 5 – 12Craft & DIY Family Free John Jermain Memorial LibrarySag Harbor
1 – 4 pm “Sun, Sand and Surf” presented by East End Photographers Group Art Free The Water Mill MuseumWater Mill
Sept. 10, 6 pm Seminario para Compradores de Vivenda por Primera Vez en Español Mattituck-Laurel Library