Bob's Marina is a full-service marina on Lake Catherine on the Chain O'Lakes in Antioch, IL, serving the boating community since 1947. Located off IL-173, we offer boat slips, a gas dock, indoor and outdoor boat storage, marine repair by Mercury Certified technicians, and a marina store stocked with fuel, snacks, drinks, ice, and boating essentials. Open Tuesday through Sunday May through October, with limited winter hours. Just an hour from Chicago and Milwaukee.