Foam Glow is a non-competitive running event that is held annually in multiple locations around the nation. Participants gather at the starting line near dusk, wearing white T-shirts. After warm-up dancing and a few fun festivities, they start running or walking the course of approximately 3 miles. The catch is that before and during the run, they are sprayed with non-toxic sudsy material that glows in bright colors under black light. And there just happens to be plenty of black light on hand to make this a fun, memorable, photogenic occasion. This specific edition of the event is held in August at the fairgrounds in the Boston suburb of Brockton.
If you go:
Parking available on site for a fee, or you may be able to park in the shopping center across the street. Participants must register and pay a fee in advance. Proceeds go to benefit local charities, and Foam Glow is particularly devoted to funding children's cancer research. Foam Glow, headquartered in Phoenix, is affiliated with Blacklight Run.
Links:

600 Belmont Street
Brockton, Massachusetts 02301 USA
service@foamglow.net
Phone Numbers:
Blacklight Run
+1 (602) 559-4076
+1 (602) 559-4076