Lee Graham, the owner of Rainbow Ridge Resort, told CBC News that the occupants "seem to be OK with no major injuries."
Graham said the plane crashed close to the pool area, and brought down a hydro line.
"It even slid close to one of the trailers, but nobody was inside the trailer," he added. "You can see parts of the plane, the cabin and wing is broken off, the propeller is broken off, and there are downed hydro lines and downed trees."
Dufferin OPP, firefighters and EMS were on the scene.