The path is a dedicated bike lane running parallel to a sandy beach, suggesting a Mediterranean coastal city. The architecture and the style of the promenade, including the specific tree species and the concrete structure on the left, strongly resemble the beachfront areas of Barcelona, Spain. The sunny climate and the casual attire of the people are consistent with a summer day in Catalonia. I am quite confident this is the Nova Icaria or Bogatell beach area in Barcelona.

then: guess