The Killarney (Killarney Mountain Lodge) Water Aerodrome originated in the late 1940's and early 1950's as part of the Frehauf Corporation's development of the Killarney Mountain Lodge property into a private wilderness retreat on the shores of Georgian Bay in Ontario, Canada. The remote location, lacking road access at the time, necessitated reliance on boat or seaplane arrivals for guest, establishing water-based aviation as the primary means of access to the lodge. 

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To facilitate this, Fruehaul Trailer Company operated a fleet of aircraft, including the Grumman Mallard amphibious seaplane (N1208), which performed water landings and take-offs directly at the lodge via a dedicated ramp. Lodge records and aviation accounts from the early1950s document the first instances of aircraft use, coinciding with the property's expansion into a corporate haven for fishing, hunting and outdoor activities, where executives were ferried from Detroit and other U.S. locations. The lodge itself opened to Friehaul's invitees in the mid-fifities, with water aerodrome setup enabling small plane arrivals essential to its isolated operations. (from Grokipedia)​​​​