Txik Txak (subtitled Ipar Euskal Herriko garaio sarea in Basque, les mobilités du Pays Basque in French and las mobilitats del PaÃÂs Basc in Occitan) is the new transport district of the Northern Basque Country, owned by Euskal Hirigune Elkargoa.
It opened on 2 September 2019, grouping all the precedent transport services such as Chronoplus, Hegobus, Transports 64 and Kintoa Mugi. It owns 2 rapid transit lines, 39 bus lines, 2 demand-transportation lines, 6 free navettes and 2 passeurs.
The name comes from the pelotari-used expression "txik txak", symbolizing the ball kicking the floor and then the fronton wall.