SATURDAY, September 28
Bicycle Brakes, Levers, Pads & Cables Workshop. 9 a.m. Community Cycles, 2805 Wilderness Pl., Ste. 1000, Boulder, 720-565-6019.
Lafayette Quest — A scavenger hunt race to combat childhood obesity. 9 a.m. Bob L. Burger Recreation Center In-line hockey rink, 111 W. Baseline Road, Lafayette, www.cityoflafayette.com.
Smithsonian Free Museum Day — At Boulder History Museum and other area museums. Visit www.smithsonianmag.com/museumdaylife for details.
TUESDAY, October 1
Backpacking Basics. 6:30 p.m. REI Store, 1789 28th St., Boulder, 303-583-9970.
Nepal & Tibet. 7 p.m. Changes in Latitude Travel Store, 2525 Arapahoe Ave., Boulder, 303-786-8406.
WEDNESDAY, October 2
Hand Health for Rock Climbers. 6:30 p.m. REI Store, 1789 28th St., Boulder, 303-583-9970.