In early mankind’s scavenger hunts, everyone who gathered enough berries to avoid starvation was a winner, but most winners were still eaten by leopards. Enjoy less perilous scavenging with today’s Groupon: for $45, you get a two-person team registration to the Urban Assault Ride on Sunday, July 31 (up to $120 value). Participants must register by Friday, September 9.

The Urban Assault Ride, which is sponsored by New Belgium Brewing, sends bi-wheeled lads and lasses on a citywide bicycle scavenger hunt, where driven teams of pedal pushers scour Minneapolis for checkpoints containing whimsical obstacle courses. Each course is kept under wraps until the race, but past colorful challenges have included human bowling, piggyback polo, and paperboy relay. Teams will choose their own route and check-point order for the concrete journey, speeding off from Peace Coffee on 21st Avenue South before venturing out in search of checkpoints and two mystery checkpoints.

The team to cruise through all checkpoints in the shortest amount of time wins, and the top-three road-warrior duos will receive prizes for their valiant efforts, such as Timbuk2 bags, Keen shoes, and Urban Assault Ride socks and arm warmers. After crossing the finish line, all teams can celebrate at the after-party, teeming with New Belgium beer, big wheels, and raffle prizes. Aside from providing an exhilarating experience, the Urban Assault Ride helps promote and encourage bicycle commuting and does its civic cyclical duty by implementing myriad environmental practices and contributing their proceeds to local nonprofits.