Brentwood-Oakley: 2017 Summer Bike Challenge


511 Contra Costa’s Summer Bike Challenge provides free, fun, healthy summer recreation that challenges participants to explore their hometown via bicycle.

Cost-free and open people of all ages, participants simply cross off squares by biking to parks, schools, downtown, City Hall, the library, Farmers Market, and destinations of their choice to complete the Challenge. Adding to the fun, FREE TREATS are offered from select locations on certain dates (see Challenge Cards for details). Plus, participants can enter to win the iPad Mini Grand Prize drawing.

Challenge Cards are available in each city’s library, city hall buildings, community centers, and online at