 The aim is to cover a certain distance within a given time or to cover as many circuits as possible.The "idi probak" are by far the most popular in this category.The lifting of stones is one of the most widely known Basque rural sport outside the Basque Country, largely thanks to the prowess of Iñaki Perurena, a "harrijasotzaile" (stone-lifter) from Leitza, in Navarre, the first on record to lift stone over 300 kg.