Michigan · USA
Thunder Bay National Marine Sanctuary
45.065° N · 83.432° W
At a glance
Best Time to Dive
June to September
Water Temperature
10-18°C / 50-64°F
Visibility
5-40m+ / 16-130ft+
Access Type
Boat
Dive Type
Scuba
Difficulty
Advanced
Max Depth
40 m
Average depth
25 m
Nearest airport
APN
Beneath the surface
Known as 'Shipwreck Alley', Thunder Bay is a National Marine Sanctuary protecting one of America's most historically significant collections of shipwrecks. Divers can explore everything from wooden schooners to massive steel freighters.
'Shipwreck Alley'Historic wrecksCold freshwater
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