The Pratt Nature Center will hold its Earth Day festivities April 22 from 10 a.m. to 4 p.m.

Offerings will include a dunk tank ($5 for three balls) from 10 a.m. to 4 p.m., a kids’ mud run at 11 a.m., a 5K dirt dash at noon and a mud pit throughout the day.

In addition, music will be offered and a birthday cake to celebrate the center’s 50th birthday will be served.

The center is located at 163 Papermill Road.

For more information, call 860-355-3137 or