Gully
Monkey in a seagull suit.
Petworth, Cowdray Park or Parham...all very nice.
i will keep a eye out for youSheffield Park is my favourite, especially in the spring and autumn.
Sheffield Park,
Buchan Country Park another good one just outside Crawley. Seem to recall Southwater had a reasonable one as well.
Leonardslee Gardens is rather nice.