NOAA’s Thunder Bay National Marine Sanctuary offices, and visitor center, the Great Lakes Maritime Heritage Center are located at:
500 W. Fletcher
Alpena, Michigan 49707
Office Hours: M-F, 8:30 am to 5:00 pm, Closed on Federal Holidays
The visitor center is FREE and open all year
Summer hours begin Memorial Day Weekend: 9:00 am - 5:00 pm, Mon-Sun
July & August extended evening hours, open until 7:00 pm daily
Winter hours begin 2nd Monday in October: 10:00 am - 5:00, pm Mon-Sat
The visitor center is closed: Thanksgiving Day, Christmas Day, and New Year's Day
Get Directions to the sanctuary visitor center, located in the pleasant lake front community of Alpena, Sanctuary of the Great Lakes!
Sanctuary staff work to actively promote uses of sanctuary resources that are compatible with sanctuary resource protection; in fact, all National Marine Sanctuaries promote multiple uses.
Access to sanctuary shipwrecks is not restricted. The range of depth of the shipwrecks appeals to a variety of diver skill levels and also provides recreational opportunities for non-divers.
Great Lakes Maritime Heritage Center Brochure
Explore Your Sanctuary Brochure
Michigan Sea Grant Coastal Tourism Fact Sheets - Plan Your Tour!
The sanctuary hosts programs and events throughout the year. Check ourcalendar to see what’s coming up! Or request a special program for your group:
Group Visit Form
Student Group Visit Form
Annual Thunder Bay International Film Festival
Annual Great Lakes Regional MATE ROV Competition
Annual Thunder Bay Maritime Festival
Michigan Historical Museum System