Hi John
The regulations does identify a max. number of shelters permitted at an interior campsite (Sec 19, O.Reg 347/07) however the intent of this regulations is to reduce site deterioration rather than the precise number of shelters . In Woodland Caribou, we address site deterioration by enforcing the max. campsite occupancy of nine campers. We will permit more than 3 tents/shelters on sites that can accommodate more tents/shelters without the need to hack out new tent pads. For a group of 4, you may each have your own tent.
Claire