Thunder Bay National Marine Sanctuary

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Protecting the Great Lakes and their rich maritime history through research, education and resource protection. The sanctuary works to ensure that future generations can enjoy these underwater treasures.

Start your visit here!

Great Lakes Maritime Heritage Center




International ROCV competition

The 13th annual MATE International competition will take place June 26-28, 2014 at the Thunder Bay National Marine Sanctuary in Alpena, MI, USA

Fourth of July Maritime Festival

Bring the whole family to this free annual community event, featuring the annual Cardboard Boat Regatta! Start building your boat today! More details here.

Cardboard Boat Race


Boundary Expansion

NOAA has published a Draft Environmental Impact Statement (DEIS) to consider expansion of the sanctuary's current boundaries. Expansion would protect important national treasures through the sanctuary's research and monitoring, education, and resource protection programs, while allowing recreational use of the resources. Read about it here.


Sanctuary Spotlight

  NEMCOG & Huron Pines host Lake Huron Watershed Summit at sanctuary visitor center 

ThunderBay Condition Report

Calendar of Events

Alpena Shipwreck Tours in Thunder Bay

MATE center chooses Alpena as location for 2014 international ROV competition!



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wreck coordinates Great Lakes Maritime Heritage Center 2014 ROV International competition