Personally I hate Cornwall in the summer... Its just about bearable in the winter, but theres just TOO many people there. I worked there for a few years life-guarding on the beaches and the tourists just get on my nerves... Newquay especially is horrible...full of pseudo-surfers.
If you want REAL surf in the UK then the Outer Hebrides is the place. As far as I'm concerned its the most consistent place in Europe, has some monster waves...I've seen it in the 20 foot range (30 foot faces)..And no I didn't go out, but I have surfed it at around 12 foot (20 foot faces!).! Best of all no one around for miles, just you the waves and the seals.The windsurfing is shit hot too...Loads of photos and info on my site. And you can just park up in your van wherever you want..The locals are ridiculously friendly too and the alcohol flows freely.
Talking of dolphins, we've been surfing and sailing with them here in Borth loads...Theres quite often a pod of them in the bay. And on occasion they come within about 10 foot of us.
Al.
--
http://www.forces-of-nature.co.uk