I'm one of those Londoners who still loves Storybook Gardens. I especially like the park in the winter with its skating trail making a curved loop about a quarter of a kilometre long through the trees and bushes, past the Storybook exhibits and the seal pool.
Illuminated by festive holiday lights, it really is the prettiest skating location this side of Ottawa. (One person with whom I chatted came from Ottawa and said that it really did remind them of skating on the Rideau Canal.)
You don't even have to own your own skates; There are rental hockey and figure skates available in the Storybook castle.
Note: Children under 5 years-of-age must wear a helmet. No hockey sticks, pucks or balls are permitted on the skate trail, nor are sleds or toboggans. Strollers and wheelchairs are permitted but people are asked to clean the wheels of any debris before heading onto the ice.