Hi All,
One of the big attractions in downtown Memphis is Mud Island -- well named. A bridge crosses over to the island and behind the island is a marina. Just south of town Memphis has a sheltered harbor and another marina. These are the only two marinas on the lower river between Alton ILL. and Greenville MS.
The big attraction on Mud Island is the river walk. A detailed scale model of the entire lower Mississippi from Cairo to the Gulf. The river walk is 5 blocks long and, apart from the fact that the water is clear, it's pretty accurate. Here's a couple photos:


In that second photo the young boy you see standing in the New Madrid loop is my son Isaac who, like Bob now, has paddled and boated Old Man River.
River_Joe