Beach fishing - Caravan park

Hi group,

I need to find a caravan park that is close to the sea. I
visited one years ago, but I cant remember where. The site is just behind a
shingle bank, and there is the sea. There is a marina within walking
distance. I think that the area in question is between Poole and Milford on
Sea. Any Ideas? My father can't drive and it would be great if I could leave
him at the caravan and he could go fishing whenever he liked.