We have just booked the ferry from Portsmouth to Santander for the October break. We plan on staying 2 nights on the way to Alicante (to see family) and then one night stopover on the way back to the ferry.
The 2 easiest stop offs on the way/ way back seem to be Madrid or Zaragoza. Which would you think has the most to see or is the most interesting? I have been to Madrid before many years ago so the city is not necessarily my first choice. Which route is best?