Thunder Bay National Marine Sanctuary offers incredible diving, snorkeling, paddling and, fishing in Lake Huron’s crystal-clear water.
FREE ADMISSION to the Great Lakes Maritime Heritage Center
Experience the shipwreck century in Thunder Bay!
Immerse yourself in the deep – check out a full-size wooden replica of a Great Lakes schooner and shipwreck where you can walk the deck, feel a Great Lakes storm, and touch the massive timbers of the boat now resting on the lake bottom.
Explore the nation’s first freshwater national marine sanctuary.
See first hand dozens of the world’s best-preserved shipwrecks up-close on the Lady Michigan glass-bottom boat!
Visit Alpena Shipwreck Tours to book a trip.
There are lots of other ways to #GetIntoYourSanctuary. Use the list below as inspiration.
Take a paddle or a snorkel to some of the shallow shipwrecks.
Download the TBNMS Snorkel & Paddle Guide
Walk the Great Lakes Maritime Heritage Trail along the sanctuary shoreline.
Visit the interactive trail map
#GetIntoYourSanctuary with games, badges, and a photo contest.
Check out photo contest details
Travel to the one or more of the eight lighthouses lining the sanctuary.
Sanctuary sentinel details
