The Dart Populaire is a team ride. Teams form (minium of 3 bicycles and maximum of 5 bicycles, tandems count as 1 bicycle) and choose their own route to the destination, planning to arrive 8 hours after the start and covering at least 120km.
More details on the rules here.
On registration, please enter your team name / team leader in the 'comments or other relevant info' field.