Southwest Michigan Underwater Preserve

The Southwest Michigan Underwater Preserve is a protected underwater area along Lake Michigan's southeast shore, extending several miles offshore from the Michigan coast. It contains submerged shipwrecks, clay cliffs, and rocky formations that lie beneath the water's surface.

This underwater preserve was established in 1999 to protect maritime heritage along Lake Michigan. It became the tenth designated underwater protection area in Michigan waters.

The underwater preserve contains multiple shipwrecks and geological formations that serve as educational resources for studying Great Lakes maritime history and marine archaeology.

You can reach this preserve from several Lake Michigan coastal towns including New Buffalo, St. Joseph, Benton Harbor, South Haven, Douglas, Saugatuck, and Holland. The water is most pleasant for exploring during the warmer months from spring through fall.

The preserve extends from the shoreline to depths reaching approximately 130 feet (40 meters) or up to 5 miles offshore, whichever is greater. This varied underwater landscape creates distinct zones for exploration and research.

Location: Michigan

GPS coordinates: 42.14200,-86.52900

Latest update: December 14, 2025 17:40