I did it a few hundred kms south from you (Cartagena) :)
I think this was the most kms I covered in a calendar week, and also a maaassive volume of cycling to what this half-assed, swim/run focused triathlon training this fall has been. 700kms in 13 days.
What were the temps like down there? Mostly sunny days in short sleeves for us but very cold (-5C I guess at some points) in the night and mornings until the sun had done its job.
Pretty tough doing it in Spain...
To be fair, this loop could've been covered in snow - out bailout plan was to get pissed up wandering Valencia.