Have a look at North Norfolk.. lots of lovely quiet beaches if you don't mind a bit of a walk... high sands creak (stifkey) is a personal favourite of mine.
Was there this Saturday with my two little ones (2 and 4).. spent a couple of hours crabbing in the creaks (pulling up 4 / 5 crabs a go).. then walked out to the beach (perhaps took us 10 mins).. we saw maybe 3 or 4 families on the beach.. and if we had walked another 10 mins would not of had a person in sight.. also if you like the wildlife.. a lot of the young seal pups swim in the pools left after the tide goes out.. my girls totally love it.
Was there this Saturday with my two little ones (2 and 4).. spent a couple of hours crabbing in the creaks (pulling up 4 / 5 crabs a go).. then walked out to the beach (perhaps took us 10 mins).. we saw maybe 3 or 4 families on the beach.. and if we had walked another 10 mins would not of had a person in sight.. also if you like the wildlife.. a lot of the young seal pups swim in the pools left after the tide goes out.. my girls totally love it.