The Lake Opeongo Boat Ramp is located at the Opeongo Access Point inside Algonquin Provincial Park, reached by following Opeongo Road north for 6. 2 kilometres from km 46. 3 on Highway 60.

The access road runs alongside Costello Creek and is straightforward to navigate. The site is roughly three and a half hours from Toronto and just under three hours from Ottawa.

The boat launch ramp sits alongside several other facilities at the access point, including parking, toilets, shower facilities, a telephone, the Opeongo Store, and a Harkness Lab Fish Check Station.

Lake Opeongo is one of the few lakes in Algonquin Provincial Park where motorized boats are permitted, making the ramp a practical entry point for boaters as well as paddlers.

The access point also serves as a hub for interior canoe routes, with canoe rentals and water taxi services available nearby. Backcountry camping permits for the area can be reserved up to five months in advance online or by telephone.

Note that the Lake Opeongo Access Point Office was permanently closed as of April 2026; visitors requiring in-person services should use the park's West Gate or East Gate instead.