The canal is open for skating the full distance, 7.8 Km Mind you it's -28C wind chill today with a stiff north wind. Going down too -41C overnight.... NO thanks. https://ncc-ccn.gc.ca/places/ridea...
Was up at Algonquin last week camping for the week. They had their skating rink open too. Only got down as low as -20C while skating. If I was up there today it's -28C and sunny as well :) I find that a little to cold to last too long out on the ice these days.