If you want to hire a guide for a private group this is the price list:
2 hours 145 euros
4 hours 210 euros
8 hours 360 euros
The extra hour is 45 euros.
This fee covers the time the guide is with the group, for other expenses such as transport, entrance fees and food there will be an extra charge depending on the itinerary.
C. Cortes de Aragón, 61
50005 Zaragoza, Spain