Over the past three decades, PADI professional Cris Kohl has found and explored wrecks in most of the world's oceans and throughout the Great Lakes. There may be no better expert on diving America's inland seas, home to the most well-preserved trove of under-explored shipwrecks on the planet. Find Kohl's indispensable resources on wreck diving at seawolfcommunications.com. Check out his top five favorite Michigan dives below:

1. The Sandusky is a 110-foot-long brig, a very old vessel considering it was built in Sandusky, Ohio, in 1848, and sank with the loss of all hands in a violent storm in the Straits of Mackinac, which connect Lake Michigan and Lake Huron, on September 20, 1856. Located in 1981, the wreck lies in 84 feet of water and sports a unique ram's-head figurehead, among many other items of great interest. This wooden shipwreck lies amazingly intact considering that it has been underwater for 150 years!

2. The small tug, Mary Alice B., only 62 feet long, sits upright and perfectly intact in 98 feet of Lake Huron water off Lexington, Michigan. A relatively recent loss, the 44-year-old workhorse became waterlogged and sank on September 5, 1975. This vessel's pilot house, with the original wooden ship's wheel still in place, is one of many fascinating parts to explore.

3. In only 30 feet of clear Lake Superior water off Munising, Michigan, the wreck of the schooner Bermuda has attracted scuba divers for many decades. Lost in 1870 with a cargo of iron ore (most of which was salvaged), and with several open hatches and areas of broken decking, this intact hull allows divers to explore safely a vintage wooden schooner below deck, from bow to stern, for its entire 136-foot length.

4. The 42-year-old wooden steamer named the Montana burned and sank on September 7, 1914, off Alpena, Michigan, in Lake Huron's Thunder Bay, with no lives lost. The wreck sits in 74 feet of water with its four-bladed propeller and very tall, upright steam engine predominating this site.

5. The recently located shipwreck tentatively identified as the three-masted schooner E. R. Williams lies upright and very intact in 105 feet of water in the Michigan part of northern Green Bay, an arm of Lake Michigan. This ship sank near St. Martin's Island during a severe storm on September 22, 1895, the crew escaping in the lifeboat. With anchors in place and a long portion of the bowsprit pointing the way, this wreck appears like it could sail away on its own hull very easily.