The snippets describe Holland River Marina as a full-service marina facility, not specifically a dedicated public boat ramp.

However, the marina does sit on the Holland River and would logically include launch access, so here is what the sources actually support: Holland River Marina is a full-service boating facility located at 21259 Bathurst Street in Holland Landing, Ontario, on the Holland River at the south end of Lake Simcoe.

Established in 1971, the marina offers 255 slips along with repair, haul-out, and storage services.

Its position on the Holland River provides boaters with a short cruise to Cooks Bay and onward access to Lake Simcoe, which connects to the Trent-Severn Waterway.

The location is convenient to Highways 400, 404, 11, and 9, making it readily accessible from Toronto, the GTA, and Barrie.