Saturday, December 3, 3 p.m., H Street and Peace Portal Drive. 1.5-mile obstacle course family fun run/walk. Holiday costumes encouraged. Adults $10, kids $5, family of five $30. Includes bowl of chili at Pastime Bar & Eatery. Advance registration: blaineholidayharborlights.com, day-of at 2:30 p.m. Sponsored by Blaine-Birch Bay Park and Recreation District 2.