Explore above and beneath the waves of Lake Huron in Thunder Bay National Marine Sanctuary. Whether cruising as a passenger aboard a glass bottom boat, paddling your own kayak, or snorkeling from shore, a calm day on Lake Huron can provide amazing views from above. The range of depth of the shipwrecks appeals to a variety of diver skill levels and also provides opportunities for non-divers. The sanctuary maintains seasonal moorings at many shipwreck sites. Available from May to September, the moorings make for safer diving and also protect shipwrecks from anchor damage.

An old ship wheel

Great Lakes Maritime Heritage Center

Experience the rich history of the Great Lakes by exploring the exhibits at the Great Lakes Maritime Heritage Center.

Aerial shot of blue and white buildings next to a river


The sanctuary visitor center is located in downtown Alpena, Michigan.

an rov is piloted just below the surface in a pool as people look on from the deck

Programs & Events

The sanctuary hosts a variety of programs and events throughout the year. Check our calendar for what’s coming up!

A rocky shore of a frozen lake with pine trees in the background

Places to Go

Lake Huron’s coastline in northeast Michigan offers a rich maritime landscape to explore.

people rowing a boat

Things to Do

Thunder Bay National Marine Sanctuary is full of historic shipwrecks and exciting adventures.