The Vail/Boulder Octopus is an endurance road bike event that tackles Eagle/Boulder County’s eight quintessential climbs. It is very challenging but for bikers who like to climb, this is one of the country’s ultimate accomplishments. It is a group ride; not a race. Participation fee is nominal. There is sag-wagon support. The Octopus alternates between Vail and Boulder biennially. See web site for complete details.