Along with my earlier suggestion. We would have to agree on a provincial park. Here is a link for tha parks page
http://www.ontarioparks.com/ . It says we can make reservations here is the link
http://www.ontarioparks.com/english/reservations.html . Don't know where everyone would like to meet. I suggested the Sandbanks here in Picton because it is a beautiful beach with lots of camping. If you don't want to camp there are several bed and breakfasts in the area. The place is just a suggestion. All reservations could to be done indepently so 1 person isn't faced with all the responsibilities. I would be willing to travel so location doesn't matter to me. Just throwing out some ideas.