Sunset swimming with the Boerum Hill Association. Douglass-Degraw pool (Douglass Street between Third Avenue and Nevins Street in Boerum Hill), 5 pm. Call (718) 928-2425 for info.
Brooklyn Bridge Park Development Corp. On the agenda: construction update. Polytechnic University (6 Metrotech Center, Jay Street, between Myrtle Promenade and Tech Place in Downtown), 6 pm. Call (212) 803-3822 for info.