with all the gadgets on the market for keeping warm and the quality of some of the tents you can camp all year round, But be warned!!! it's going to be a cold one this year by all accounts
------------- You just don't know what you don't know.
I think Glenmore campsite in the Cairngorms is open over Christmas. They've got nice new toilet blocks with underfloor heating where campers have been known to doze off when the weather is really cold outside.