Saturday, Sept. 29, 11 a.m.-1 p.m.: 6th annual Family nature scavenger hunt at Downs Farm Preserve, 23800 Main Road, Cutchogue. Join Group for the East End and Southold Mother’s club on a scavenger hunt on the trails of the preserve. Keep your eyes out for hidden prizes. Free. For information or to register, contact Jessica Kennelly: 631-765-6450, ext. 215, firstname.lastname@example.org.