The Galdames Mendi Bira is a half-mountain route along the Ganera and Ubieta border. From the town of San Pedro (170 m.) You can access Pico la Cruz (800 m.) Through a path with technical sections, through which our ancestors traveled to go to the great Bilbao, to make a route that travels along roads and mountain trails of great natural and historical beauty, where wooded areas are combined, with slopes and steep areas of live rock and tall grasslands.

Descending to the old track of the mining railway to reach the area of ​​less altitude (El Pobal). Great lunch on the old track of the mining railway, to gain strength and ascend through Loizaga Castle, to Mount Zipar (630 m.), Ending with a technical descent. We pass through great mountains, with a lot of history, such as Pico la Cruz (800 m.), Mythical Mount Galdames where in October a great vertical race is made, Ganera, Pico Ventana, El Alta, Zipar.