Princeton NJ Events

Princeton 5K

Saturday March 21, 2026
8:30 AM

Now in its 17th year, the Princeton 5K continues to represent all that is good about community in-person events. Athletes, young and old, big and small, fast and not as fast — come together year after year to run or walk while generously supporting the Princeton High School Cross Country and Track & Field teams.

For those under 10 who aren’t up for the full 5K, the Kids Dash offers a fun but challenging 300m loop. Every participant will receive a youth-sized t-shirt and wear bib #1 with pride.

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World Water Day @The Watershed

Saturday March 21, 2026
10:00 AM - 12:00 PM

World Water Day 2026 Morning time frame 10 a.m. - noon Each session will offer games, explorations in our lab, water-themed arts and crafts, a vernal pool exploration hike, visits with critters that live in our water, and so much more! Try a sample from our Water Bar -- small cups filled with drinking water from local towns and wells - and vote on which one you think tastes the best. Learn about the importance of protecting our local water ways and the various actions you can take to keep our water clean, safe and healthy. World Water Day is an annual United Nations event, started in 1993, focusing on the importance of water. This year the UN is focused on water and gender. Patches will be available for purchase in our Nature Store on World Water Day.

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Saturday Canal Walk

Saturday March 21, 2026
10:00 AM

Saturdays (Year Round) 10:00 AM

Three mile walk on the towpath, year-round. Free. Meet at Turning Basin Park, Alexander Road, Princeton, at the end of the parking lot near the road. Register to get notice of cancellations due to weather by emailing canalwalkers@googlegroups.com.

Summer Camp Open House, Boys & Girls Clubs of Mercer County

Saturday March 21, 2026
11:00 AM - 2:00 PM

The Boys & Girls Clubs of Mercer County will host a Summer Camp Open House on Saturday, March 21, from 11 a.m. to 2 p.m. at 212 Centre Street in Trenton. Families are invited to tour the Club, learn about summer programming, and enjoy a variety of activities including arts and crafts, outdoor games, and gift giveaways. The event will also feature a special “Super Saturday” Egg Hunt, offering a fun opportunity for children and parents to experience the Club and explore summer camp opportunities. More information is available at www.bgcmercer.org/summercamp

FOPOS Eastern Screech Owl Walk with South Jersey Wildlife Tours

Saturday March 21, 2026
7:30 PM - 8:45 PM

Join the Friends of Princeton Open Space (FOPOS) and South Jersey Wildlife Tours for a guided Eastern Screech Owl Walk at dusk on Saturday, March 21st at 7:30pm. Did you know that Eastern Screech Owls are one of the most common owl species in North America? Odds are you have one of these nocturnal neighbors mere miles (or less!) from your doorstep. During this experience, we will walk the trails at the Billy Johnson Mountain Lakes Nature Preserve in Princeton and listen and look for Eastern Screech Owls, learning much more about them along the way.

Space is limited to 20 participants; be sure to sign up in advance. Please note that this event is geared towards adults as it begins at 7:30 PM.

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