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Isle Royale’s ten major shipwrecks span seventy years and showcase the evolution of Great Lakes maritime transportation – from wooden side-paddle steamers to massive steel freighters. Protected by the National Park Service, these vessels can be explored by experienced divers.

Diving Conditions

Lake Superior is cold. At the surface, water temperature rarely exceeds 55 degrees Fahrenheit; below 50 feet, 34-37 degrees. Full wetsuit is necessary; a drysuit is recommended.

Dive conservatively. Cold water increases the possibility of decompression problems.

Sunlight may not penetrate to the deeper depths depending on conditions (visibility, angle of sun, and fog or clouds).

Diving is remote, emergency care is not immediately available. Stay within your limits and training.

Portions of some wrecks are at depths of less than 60 feet; many are far deeper. Deep dives require specific equipment and experience.

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