Big Water Marina and Campground is a full-service facility that provides an unspoiled oasis for all types of lake lovers. Located on the largest expanse of open water on Lake Hartwell, the marina is one of the most accessible spots for visitors to fully embrace the atmosphere of the lake — on and off the water. Big Water Marina and Campground supports 150+ wet slips tucked in a well-protected cove. We also cater to non-boaters with a full-service campground and a seasonal bar and grill. Explore Lake Hartwell at your leisure with our lineup of pontoon, kayak, paddleboard, and hydrobike rentals.