San Sebastián (Donostia in Euskera) is a sophisticated city arched around one of the finest urban beaches in the world, La Concha (The Shell), so named for its resemblance to the shape of a scallop shell, with Ondarreta and Zurriola beaches at the southwestern and northeastern ends. The promontories of Monte Urgull and Monte Igueldo serve as bookends for La Concha, while Zurriola has Monte Ulía rising over its far end. The best way to see San Sebastián is to walk around: promenades and pathways lead up the hills that surround the city. The first records of San Sebastián date from the 11th century. A backwater for centuries, the city had the good fortune in 1845 to attract Queen Isabella II, who was seeking relief from a skin ailment in the icy Atlantic waters. Isabella was followed by much of the aristocracy of the time, and San Sebastián became a favored summer retreat for Madrid's well-to-do.

The city is bisected by the Urumea River, which is crossed by three bridges inspired by late-19th-century French architecture. At the mouth of the Urumea, the incoming surf smashes the rocks with such force that white foam erupts, and the sound is wild and Wagnerian. The city is laid out with wide streets on a grid pattern, thanks mainly to the dozen times it has been all but destroyed by fire. The last conflagration came after the French were expelled in 1813; English and Portuguese forces occupied the city, abused the population, and torched the place. Today, San Sebastián is a seaside resort on par with Nice and Monte Carlo. It becomes one of Spain's most expensive cities in the summer, when French vacationers descend in droves. It is also, like Bilbao, a center of Basque nationalism.

Neighborhoods include La Parte Vieja, tucked under Monte Urgull north of the mouth of the Urumea River; Gros (so named for a corpulent Napoleonic general), across the Urumea to the north; Centro, the main city nucleus around the cathedral; Amara, farther east toward the Anoeta sports complex; La Concha, at center stage around the beach; and El Antiguo, at the western end of La Concha. Igueldo is the high promontory over the city at the southwestern side of the bay. Alto de Miracruz is the high ground to the northeast toward France; Errenteria is inland east of Pasajes; Oiartzun is a village farther north; Astigarraga is in apple-cider country to the east of Anoeta.