For those in the UK, or others in the know: Is there any sense that Cornwall is different than "England"? I've become a big fan of the UK, and visit when I can, and right now am missing those lovely long days that make exploring so much fun.
I grew up in Cornwall. It's absolutely beautiful and I love to visit, but I'd hate to live there.
For the love of all that is holy, don't go in February, the weather that time of year is almost guaranteed to be atrocious. Normally November there's a good chance of OK weather.
There is more coastline in Cornwall than just about any other county. it has the worlds 3rd largest natural harbour in the world (which is less impressive than it sounds), lots of history, castles, the Eden project, tiny tucked away beaches.
The accent there is different, and there are proud Cornish people that boast of never having left the county, lots of it is very rural, there's plenty of twisty narrow roads flanked by Cornish hedges, which are basically pretty thick stone walls with a light coating of weeds, which can make for fun driving.
If you do visit I highly recommend a cream tea in a nice hotel/tea room with real Cornish clotted cream and scones. The best stuff is made by Roddas. Also a proper Cornish pasty which you can find in myriad little bakeries, not one of the big chain ones is also an experience.
I've lived in about 6 different counties in England now since leaving home and they all have different characters but they are all most definitely English.