The Donostia-San Sebastián Half Marathon is a very popular sporting event that takes place in the city of San Sebastián in the Basque Country, Spain. This race attracts both local and international runners and offers a perfect combination of sporting competition and enjoyment of the urban landscape. The course mostly leads through emblematic parts of San Sebastián, such as the La Concha beach promenade, the old town, and other significant areas of the city, offering runners impressive views and a unique atmosphere. The event attracts thousands of participants, from elite runners to amateurs. The diversity of levels makes it accessible to different types of athletes. The race is well organized with aid stations along the course, medical services, and traffic controls to ensure the safety of the runners. Often, the half marathon is celebrated together with other sporting and cultural activities, making it a festive event for the whole city.