Perhaps you were not aware that Ottawa has many garden and better than that there are garden walking tours.
The Garden Promenade showcases over 75 gardens as well as the Rideau Canal UNESCO World Heritage Site, bicycle and pedestrian pathways, and historical landmarks.
Programming includes weekly guided bus tours, walking tours, bike tours, Hop On-Hop Off bus access, a step-on-guide service, monthly events as well as activities and special promotions taking place at participating gardens and partner locations.
You can visit their website at www.gardenpromenade.ca/ to find out much more.
Get out and enjoy while the weather is still superb!