If you do find yourself over at newhaven, there's a BRILLIANT museum,( not the one at the fort) which sadly doesn't seem to get the mentions it deserves,...........certainly from a military point, Newhaven has strong links with the Canadians and Dieppe.
I think Littleington T gardens re-open at Easter,............if you like cider etc, Middle Farm, at Firle is worth a visit,....yup, they do tasters, so make sure someone else is driving..........:-D
Snaps given an excellent run down on the dungeness/rye area, and I'll certainly second his choice for fish n chips.
Enjoy your stay, mate.
Andy