Here is the revised schedule. I had wanted to go to Ottawa first so
Ben could visit his old school but it would mean having to go to
Ottawa twice from Toronto. Going to Guelph twice is easier!

Friday June 25 to Monday June 29 - Guelph
Monday June 29 to Monday July 5 - Toronto/ Niagara Falls (probably on
the weekend)
Monday July 5 to Thursday July 15 - Ottawa
Friday July 16 to Sunday July 18 - Guelph and Toronto (fly out Sunday night)

Ben of course will be there longer. Felicia is the director of his
social agenda so you'll have to book your time with her!