These photos are some of the ice sculptures at Winterlude. The people were still working on them, before the judging, when I was there. And yes, he is using a chain saw for the rough work.
Each block of ice weighs in the neighbourhood of 300 pounds, so they brought something on the order of 18 tons of ice into the park.
My favourite was the underwater scene. Beneath the ray and coral, there were other fish, and sea grasses.