Hi Lisa,
Recommend Ferry meadows we visite at least 4 times a year,
Site is 5 mins walk from the park, with your dogs you will certainly enjoy,There are loads of walks around the Park, you can cycle into Peterborough from there.
Site is open all year, split in two, both sides of the road leading to the park, one side hardstandings, other grass.
Tv reception lousy but you can hook up to theirTv sockets proved with each electric point.
Royston