Summer Block Party with JaZams – Crafts, games, food, activities, and music. Screening of `The Princess Bride’ begins at dusk on the Palmer Square green. Participants include Arts Council of Princeton, Kitchen Kapers, Olsson’s Fine Foods, Princeton Public Library, Stone Soup Circus, Thomas Sweet Chocolate, and Winberie’s Restaurant. 6-8 p.m., free.
Princeton Fire Department Inspection Parade – The annual fire department parade starts at the firehouse on Chestnut Street at 7 p.m. and marchers head down Nassau Street.
Once Upon a Mattress at the Princeton Festival – Musical performed at 185 Nassau Street, Friday and Saturday at 8 p.m., Sunday at 3. Tickets $45.
A Little Night Music with the Princeton Summer Theater – A Sondheim musical set on a country estate in Sweden. Hamilton Murray Theater, Princeton University, Friday and Saturday at 8 p.m., Sunday at 2. Tickets $25.
Screening of `The Clean Bin Project’ at the Princeton Public Library – Documentary about a couple’s friendly competition to live waste-free for an entire year. 7 p.m., free.
Open Mic Night, Infini-T Cafe – Stop by for a cup of tea or to sing a tune at the Hulfish Street cafe in downtown Princeton. Begins at 9 p.m.
Saturday, June 23
Farmers’ Markets in Montgomery and West Windsor – Montgomery Friends of Open Space market at the Village Shopping Center, 1340 Route 206 South, Skillman; West Windsor Community Market at the Vaughn Drive Parking Lot, Princeton Junction Train Station. Both run 9 a.m. to 1 p.m.
Stony Brook Walking Tour, Historical Society of Princeton – Follow a portion of the trail that Washington took from Trenton to the battlefield. The tour includes stops at the meeting house and cemetery. Updike Farmstead, 354 Quaker Road, 2 p.m. Tickets $4.
House Concert, Candlelight Concerts for Epilepsy Awareness – Francis Dunnery performs at the Pennington home of Eric Miller, who is raising money for epilepsy research and working to raise awareness about epilepsy. 8 .m. Register at www.candlelightconcert.org.
Sunday, June 24
Olympic Day, U.S. Rowing Association – Go for the Gold 5K at 9:30 a.m. Announcement of the 2012 Olympic Rowing Team at 11:30 a.m., meet and greet to 1 p.m.Mercer County Park, 334 South Post Road, West Windsor.
Tree Walk with the Princeton Shade Tree Commission – Planet Princeton contributor and naturalist Steve Hiltner presents `Tree Identification and Invasive Species’. Begins at 57 Mountain Avenue at 10 a.m.
Cranbury Jazz at the Princeton Public Library – Sextet presents jazz standards, blues, and bebop selections, 3 p.m., free.
Hidden New Jersey Authors Book Signing – Linda J. Barth and Hazel Mitchell, authors of ‘Hidden New Jersey,’ a seek and search book for ages 3 to 100, sign books at the Morven Museum at 55 Stockton Street from 2-4 p.m.
Firefly Festival, Terhune Orchards – Music, nature, and outdoor activities including pony rides, wagon rides, and fire fly hunting. Miss Amy and her Big Kids Band present a family show. Elaine Madigan talks about fireflies using hands on materials, crafts activities, and games. Food available. Free admission. $5 for craft activities., pick-your-own blueberries until 8 p.m. Farm located at 330 Cold Soil Road, Lawrenceville, 4 p.m. to 9 p.m., free.