Gananoque (Clark's Marina) Aerodrome

The closure was the result of a private business decision by the owners of Clark's Marina. As a private water aerodrome, its existence was tied to the marina's business operations. The decision was likely based on economic factors such as declining demand for seaplane services, the cost of insurance and maintenance, or a strategic decision to focus exclusively on the core marine business. There is no evidence that the closure was due to a specific accident, military conversion, or regulatory action.

The site at coordinates 44.31948, -76.209143 is still the location of Clark's Marina, which remains a fully operational and active marine facility. The marina provides docking, fuel, boat storage, and repair services for recreational boaters. The site is now used exclusively for marine activities, and any specific infrastructure that once supported seaplane operations has been repurposed for conventional watercraft.

Gananoque (Clark's Marina) Aerodrome was a registered private water aerodrome (seaplane base) located on the Gananoque River, providing direct access to the St. Lawrence River and the Thousand Islands. Its primary function was to support general aviation, catering to private and charter seaplanes. It served as a convenient fly-in destination for tourists, recreational pilots, and potentially local sightseeing flight operators. Its significance was local, enhancing the accessibility of the popular tourist region for the floatplane community, rather than serving as a major transportation hub.

There are no known or publicly announced plans to reopen the water aerodrome. For aviation operations to resume, the owner of the marina would need to re-register the site with Transport Canada and have it re-published in the Canada Flight Supplement, a process that requires meeting current regulatory standards. Given the time that has passed and the marina's apparent focus on its marine services, the prospect of reopening is considered highly unlikely.