Bank Holiday - Getaway - No way ?

[Scoote]

Looking to get away over the bank holiday for our first camping trip in the van. However looking on line I'm struggling to book anywhere. Can anyone recommend anywhere a bit more off the beaten track that may have a vacancy. Needs to be dog friendly and fairly quiet as we have a six month old. Cheers me dears.

Thinking Herefordshire or North Norfolk
(No more than three hours from Northampton)