Sweeney Lake   Be the first to submit input for Sweeney Lake. If you have info on Sweeney Lake, Cameron County, Texas please submit it here to improve this web site.          These outdoors activities are available near Sweeney Lake.   Marinas On or Near Sweeney Lake: Alarcon de Colorado Marina, Harlingen, 14 miles away   Campgrounds Near Sweeney Lake: Palmdale RV Resort, San Benito, 6 miles away River Ranch Resort RV Park, Rio Hondo, 6 miles away Holiday Out RV Park, Los Fresnos, 6 miles away Palmdale Village RV Resort, Los Fresnos, 7 miles away   Hotels Near Sweeney Lake: La Quinta Inn Brownsville, Olmito, 9 miles away Best Western Garden Inn & Suites, San Benito, 10 miles away Americas Best Value Inn, San Benito, 11 miles away Super 8 San Benito, San Benito, 12 miles away Hampton Inn Suites Harlingen, Harlingen, 12 miles away