Why does someone need you to go camping?
Who else offers this in your area?
Can you compete?
What about insurance? You're taking people on water are you responsible for their safety?
Do you need to hire a medical staff?
What kind of back-up do you have in case of emergencies?
I know I wouldn't follow a 19 year old into the woods.
Answer these questions, and then learn some more.

I don't know Canadian Law, but here in the U.S., people sue.