Camping Didota SL, Oropesa del Mar, Spain. 

Spainish Campsite at Oropesa del Mar.
The site is in the ACSI camping discount card scheme.
During 'off season' the site is €19/night inc EHU, they also do 7 for 6 and 15 for 12 (works out at €15.20/night.
Theres a lot of building work going on at the moment but it starts at 08AM so not too bad.
Site is near 2 supermache and less than 4miles away from the Via Verdes del Mar which goes thourgh a tunnel on its way to Benicassim