Twelve Mile Recreation Area offers a year-round boat launching ramp on Lake Hartwell's Twelve Mile arm, managed by the US Army Corps of Engineers near Clemson.

The facility includes amenities such as restrooms, drinking water, a courtesy dock, ramp security lighting, picnic areas with two reservable shelters, playgrounds, and handicap-accessible facilities, with a $4 vehicle entry fee.

The location is ideal for both paddlers and boaters seeking beginner-friendly flatwater access, with the park open April 1 - September 9 (6 a. m. - 10 p. m. ), though the boat ramp operates year-round.