To help you decide if this is for you, here is the info I have: they can accommodate groups of up to 120 people, they leave from Harbourfront and paddle to the Toronto Islands (2.5 hours total. including stopover at the island and paddling back), $20 per person.
Alternatively, there is also a night time tour that starts at 7:30 ish. It's the same idea but once they arrive, the group will make a small campfire and hang out there. Then there is the choice of either paddling back to the mainland or taking the ferry (which is free on the return trip). This is also $20 per person.
A one hour canoe trip (not to the islands) is available for $10 per person and a 1.5 hour tour is also available for $15 per person.
They can be contacted directly at www.canoetoronto.com
Ask for Alex. Here is his number: 647-461-0617
Let me know!