Spain/Portugal recommendations

Hi there,
Travelling to Spain/Potugal in a months time to do a 2 month tour before heading back to the UK. I would greatly appreciate any recommendations of areas to stop, mostly along the coast. My main worry is finding areas to safely wild camp, preferably with other vans present.

I am a keen climber and stand up paddleboarder so any areas where this is also easily accessed would be great. Thanks in advance for any help.