The Crazy Moose of Ottawa 71 William St Ottawa, ON, K1N 7A4 (613) 562-4079 Welcome to the Crazy Moose of Ottawa. We are located in the downtown historic Byward Market. The store is stuffed full of thousands of shirts and great souvenirs of Ottawa and Canada. There is something for everyone from the very young, to the very well traveled. It’s always a fun place to shop and possibly the best little souvenir store in Ottawa. Hours of Operation at are 11 am - 9 pm. Open till 10 pm on Friday and Saturdays.