Celebrate Earth Day at Cape May County Park and Zoo. The family-friendly event includes a 5K and one-mile run beginning at 8:30 am, followed by live music, nature walks, yoga and food vendors until 4 pm. Cost for the 5K or fun run is $20 in advance or $25 the day of. Admission to the fair is free. For more information, call 609-465-5271 or visit the website.