Hi Rick,
Not sure where abouts you live, but the cc site Ferry Meadows
just outside Peterborough is ideal for all your needs, the sites qty 2 one hardstandings the others grass are 5 mins stroll from Ferry Meadows, it has loads of walks various lakes where I have seen dogs swimming, cycle paths, and a steam railway whigh runs along side the site.For info go into Ferry Meadows website.
Royston