It’s dark, everyone is sweating, music is blasting, and the ground and all the heaving bodies around you are covered in blacklight-reactive foam. No, it’s not a rave. It’s the Foam Glow 5K. Open to all ages, this fitness-focused event isn’t about popping Molly. In fact, it could be the first step toward preparing for a marathon. And it’s for a good cause: Proceeds from the event go to combat childhood cancer. Get there early to participate in the pre-race party and for a chance to win free gear. Stay after to keep your pulse up on the dance floor. (KL)
Foam Glow 5K
Sat, 5:30pm, $15+
County Fairgrounds, San Jose