Idi probak is Basque for “oxen tests” and is popular in parts of Spain and France. Two oxen drag a large rectangular rock weighing almost a ton from one side of a square to another. The goal of the competition is to complete as many laps as possible in a set amount of time. Modern competitions typically allow the oxen and their herders 30 minutes to complete their run, but competitions have been known to last up to two riveting hours.