Will,
I have stayed on this site on a few occasions, the last being for a week in June06. Great site for kids and for touring Northumberland.
Only has about 20 touring pitches all of which are fully serviced and the remainder a large static park. Has a large kids play area and is only a stones throw from the beach.
Can be a bit pricey if you don't make use of the facilities such as access to the leisure pool. However from time to time they make special offers such as 20% off - may be worth asking.