Northumberland (moved from Introductions)

CrazyCaravanner

I'm thinking about booking for the River Breamish CC site for July or August with the intention of visiting some of the Northumberland coastal area attractions such as Bamburgh Castle, Alnwick Castle, the Farne Islands, Lindisfarne, Berwick, and inland places
of interest. This would be during the school holidays, so I'm wondering how busy it is likely to be then, or whether to leave it until September. Any thoughts please?