San Sebastian, Spain: Upcoming Portugal Spain Adventure Destination 5: July 13 to July 23. We’ve never visited San Sebastian. The Basque city, set on the coast of the Bay of Biscay, is famed for its beaches, and quaint Old Town, and is considered one of the world’s great food spots. It’s also a stone’s throw from France, so we’ll be taking some day trips and maybe an overnight there for a change of pace.