These first two shots date back to Easter Sunday, taken from Plaza Bridge, overlooking the Ottawa Locks where the Rideau Canal meets the Ottawa River. The Canal lies between Parliament Hill and the Chateau Laurier. Note how the snow was still on the slope below Parliament Hill, while the grass was showing on the east side of the Canal.
Here are the locks earlier this week. The Canal is filled, though the locks themselves at present are still empty. They'll be filled when the boating season opens up later this month.