Mallard (Sec) Lake Access Point (#20) is a backcountry entry point within Algonquin Provincial Park in Ontario. To reach it, travel 2. 5 kilometres east from Sand Lake Gate, turn right, and continue approximately 2 kilometres to the lake (45. 830102°N, 77.

542750°W). The access point serves as a launch for canoe-based backcountry travel. Paddlers planning overnight trips must obtain a backcountry camping permit, available online or by telephone up to five months in advance.

Visitors are advised to check Algonquin Park Advisories for any water-level alerts or special notices before departing.