Train from Irun to San Sebastian scenery

We used the Euskotren to go between San Sebastian and Irun. It's a short, ride of less than 25 minutes. I don't know about the scenery. It was dark when we did it. Google mapping directions between the two places and going to the satellite view make it look like it might be scenic, but it does go through lots of little towns. I can say that the bus ride from San Sebastian to Bilbao is very scenic, even though fast roads are used.