The Thunder Bay National Marine Sanctuary offices and visitor center are located in NOAA's Great Lakes Maritime Heritage Center at :
500 W. Fletcher
Alpena, Michigan 49707
Open All Year - Free Admission
Summer hours: 9:00 am - 5:00 pm Mon-Sun, beginning Memorial Day Weekend
July & August open until 7:00 pm
Winter hours: 10:00 am - 5:00 pm Mon-Sat, beginning second Monday in October
Closed on Thanksgiving Day, Christmas Eve, Christmas Day, New Year's Eve, and New Year's Day.
Extended Holiday Hours!
Stop in to the Sanctuary Gift Store for holiday gifts and see the Center's newest exhibit: "Science on a Sphere" - open late (until 9pm) on Friday December 6, 13, 20 and Monday, December 23 for last minute stocking stuffers!
Alpena, Sanctuary of the Great Lakes, is a pleasant lake front community of approximately 12,000. Founded in 1840 as a lumber town, Alpena's various industries from timber to concrete have defined its landscapes and character. Today, Alpena is a town with many cultural and recreational opportunities.
Sanctuary staff actively promotes uses of the resources that are compatible with 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 promises recreational opportunities for non-divers. The shallower wrecks can be viewed by snorkelers, kayakers, and boaters.
Explore Your Sanctuary
Great Lakes Maritime Heritage Center Brochure
www.us23heritageroute.org (Discover "Heritage Route 23")
www.alpena.mi.us (City of Alpena)
www.michigan.org/city/alpena (Pure Michigan - Alpena page)
www.alpenacvb.com (Alpena Convention and Visitor's Bureau)