Hello Ed
I grew up in this area. Spittal is not terrific but ok. A better class of site would be the one at East Ord, if it is open, but it does not have sea view. It is however just on the edge of Berwick near the A1 so very handy. There is also Warren Mill I think near Bamburgh. On the other side of the border there is Eyemouth which is situated up a steep hill on the cliff top. The views and walks are magnificent I grew up here! Also at Coldingham there is Scoutscroft and Crosslaw. Of all these sites I'm not sure which if any will be open over Christmas. Having been brought up north of the border we always said Berwick was horrible because it was in England! It is of course a very lovely town with magnificent Elizabethan wall, the cost of which nearly bankrupted the country at the time, and they were immediately obsolete. Loads of History, lovely walks, cliffs, sandy beaches and rolling borders countryside. Hope you enjoy it.
Ruth