The Loon and Turtle Lake Boat Ramp is a public launch facility located at the end of Loon Lake Road in Gravenhurst, Ontario, within the Muskoka district.

It provides access to Turtle Lake and the connected Loon Lake, two quiet lakes tucked away in West Gravenhurst. The launch area offers both sand and dock entry options, with limited parking available primarily along the roadside.

Together, Loon and Turtle Lakes offer paddling routes ranging from 2 to 13 kilometres depending on route and duration, with difficulty rated easy to moderate.

The lakes are known for fishing, turtle spotting, and wildlife viewing, including access to Turtle Lake Marsh during high water periods.

Boaters using the ramp are expected to hold a valid Pleasure Craft Operator Card when operating motorized vessels, and to observe courtesy guidelines established by the Loon and Turtle Lake Cottage Association, including speed awareness and right-of-way for non-motorized craft.