Attend an internationally renowned jazz festival
At the height of summer, in San Sebastian, all the street corners are filled with the sound of jazz. One of the oldest European jazz festivals, ‘Jazzaldia’, (nowadays with an added sponsor title Heineken) is held here annually and is internationally renowned. Famous (and some not so famous) bands from Europe, Asia, Africa and America perform in many, sometimes unexpected, places in the city. Among others is the ‘Plaza Trinidad’, a stage in the heart of the old town at the foot of Mount Urgul, where the festival was launched in 1966. Natural acoustics can be experienced here. This is what makes this spot the most romantic of the festival. The glass cubes of the expo center Kursal with its adjoining terrace and Zuriola beach, is a very spacious area where people can come with their families and friends. The magical patio of San Telmo museum (an architectural masterpiece of the 16th century) is a must to visit at night. Here, you can usually attend concerts with sophisticated Scandinavian experimentalists. The famous stage of the Victoria Eugenia Theater features professional musicians. 2015 marked the 50th anniversary of Jazzaldia. There was an impressive collection of headlining artists, such as British pop jazz musician Jamie Calm, American avant-garde player John Zorn, as well as Norwegian jazz and Basque experimentalists in the joint project PUNKT.
Details here