Run Halloween morning in costume on the South Slope. The 5k includes a finisher medal, long sleeve shirt, chip timing, a Wicked Weed beer or N/A drink at the finish, and a donation to MountainTrue. New this year, kids can run the quarter-mile Creepy Crawly Climb up Coxe Avenue for $10. Strollers welcome. Register before spots run out. Kids' climb starts at 8:40 AM, the 5k at 9 AM. Dogs welcome on the patio, not on the course. Beer for 21+.