About this app
Get into your sanctuary! Explore the free exhibits at Thunder Bay National Marine Sanctuary’s Great Lakes Maritime Heritage Center. Experience the maritime history, shipwrecks, and archaeology of the Great Lakes, and much more. Walk the deck of a life-sized schooner battling the Great Lakes storm and then dive in and explore a shipwreck—without getting wet! Use the boat tour portion as you board the glass bottom boat the Lady Michigan to get a below the waves look at the wrecks as you view them from above! Thunder Bay National Marine Sanctuary is dedicated to protecting the Great Lakes and their rich history. In this 4,300 square-mile marine protected area the cold, fresh water of Lake Huron preserves a nationally significant collection of nearly 200 historic shipwrecks. Through research, education, and community involvement, the sanctuary ensures future generations will enjoy these irreplaceable underwater treasures of our past.
Latest release
What’s New
Small bug fixes and improvements
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 21, 2026 · 4:34 AM Free
Screenshots
