San Sebastián -Donostia in the native tongue- is a piece of heaven on earth, with deep blue seas and sandy beaches enveloped by green mountains. This Basque city has become one of Spain's summer city of choice, where they flock for its warm yet bearable temperature. But you can do plenty more than just sunbathing, it also has a cultural life to die for, fantastic restaurants, lively nightlife and beautiful natural surroundings.
Ulia is one of the three green mountains that surround San Sebastian. There are numerous San Sebastian biking clubs where you can hire a bike to really explore the lush mountain tracks and spectaculr views.