My Ottawa trip was an enjoyable and sucessful one and I am looking forward to returning.
In addition to the Nordik Spa, HI Jail Hostel, Majors Hill Park, Rideau Falls, Byward Market and Winterlude, I took a trip up to the top of the Peace Tower which is the centre part of the parliament buildings.
The tour of the parliament buildings and/ or the peace tower is free. You have to go through airport style security, but it is worth the trip up. On the way up in the lift you can see the bells and from the top you can look out over Ottawa. It will be interesting to see again when it is green rather than white. There is also a stop off at the Memorial Chamber which is dedicated to those in the Canadian military that died.