The tour operator says to celebrate its 20th anniversary it is allowing web users to create a perfect trip itinerary and then ask other users to vote to determine its overall quality compared to other submissions.

Lonely Planet founder Tony Wheeler, Céline Cousteau, National Geographic Adventure Magazine editor-in-chief John Rasmus and Zappos CEO Tony Hsieh are among the judges to determine the final overall winner once the user voting is complete.

GAP’s foray into online competitions follows the success of the now infamous Queensland Best Job campaign, New Zealand’s Peter Jackson-fronted effort, a wacky Finland initiative, and the recent HomeAway Grand Tourismo project.

Using the GAP itinerary builder, entrants must select three countries for a trip, include activities and excursions, and explain why the selection was made.

The winner, inevitably, gets to carry out the dream trip.