It looks like green carpet. If you were not in a boat you would think you were on land. It's giant salvinia and Caddo Lake has been fighting it since 2007 and except for this area that we were in they are making great headway on it and getting rid of the American Lotus which is another problem. Biologists call it the world’s worst weed. The plant has the uncanny ability to reproduce itself rapidly. One plant can become 60 million in less than two months. A handful today will cover more than 40 acres in just a few weeks time. It will actually block out the sunlight, block out the oxygen in the water. The fish and animals die. Pretty to look at but not a good thing to have in a lake.