Lime Kiln is a free, non-motorized soft launch access point on the Potomac River near Sharpsburg, managed by the National Park Service.

The site features a dirt ramp with unimproved shoreline launch, a medium paved parking lot (10 car spaces), and requires portage from the parking area to reach the water—ideal for kayaks and canoes but not suitable for large boats.

No amenities such as restrooms, fuel, or trash service are available on-site.