I was at the place on the London Road on Sunday. It is a fairly large area but surrounded by hills so that the wind is really dirty and gusty. There are also 8 sets of goal posts to deal with and 3 cricket wickets marked off with poles and rope to avoid so not entierly an ideal location.
As for Gosport i'm afraid i don't know the area really well so could not point it out myself but will get my friend who lives near there to give me some multimap coordinates which i shall send you.
It might be the same area that you are tinking of. It is right on the coast so really clean air, the ground was a bit water logged but only on one of the fields and the guys buggying on it seemed to love it even more as it made doing the spins alot easyer!!