Link to Google Maps:
https://goo.gl/maps/Hi8BVbpTbKk

Link to Google Street View:
https://www.google.es/maps/@43.3231323,-1.9807507,3a,64.1y,291.32h,87.65t/data=!3m6!1e1!3m4!1sGtHloB-8pSVgeAKn3fz91Q!2e0!7i13312!8i6656

GPS coordinates: 
Latitude: 43.3231081
Longitude: -1.9811191999999664

Price:
25€/day

Additional Information:
Maximum high  205 cm
No reservations admitted

Number of free spaces live:
(Parking Boulevard on the left column)
http://movilidad.dinypark.com/donostia/ 

Online booking: 
https://www.telpark.com/en/cities/donostia-san-sebastian/boulevard-car-park/