My advice is get some great shots and enjoy yourself, scenic walk or snowball fun Nonsuch is the place this weekend, just come along.
Wrap up warm, socks, scarfs, hats and the rest, but make sure to read the signs put up in the park and obey by them, don't go walking on ice even if its the little pond in the nonsuch gardens. Please don't go to areas of the park such as near ponds alone, we don't want any accidents where no-one can reach you quickly.