Porch Notes
'Shipwreck Alley' — Where You Can See Sunken Ships Without Getting Wet
History and culture
Lake Huron has swallowed an astonishing number of ships off the coast of Alpena — so many that the area earned the nickname “Shipwreck Alley.” Fog, sudden storms, hidden reefs, and heavy 1800s shipping traffic made it a dangerous stretch. Nearly 200 shipwrecks rest in and around these waters; the known wrecks range in date from 1849 to 1966, representing a physical timeline of how Great Lakes ships evolved — from wooden schooners to steel freighters.
Here’s what makes it magical instead of just mournful. The Great Lakes are cold and fresh — no salt, no wood-eating sea creatures — so these wrecks are eerily well-preserved. Some sit in just a few inches of water; others lie 200 feet down. And because Lake Huron’s water is so clear, you can actually see some of the shallow wrecks from the surface — by kayak, paddleboard, or one of Alpena’s glass-bottom boat tours, which let you “dive” the wrecks without ever getting wet.
The whole area is protected as the Thunder Bay National Marine Sanctuary — and here’s a fun distinction: it’s the only national marine sanctuary in the Great Lakes, and one of the few dedicated to protecting human history (shipwrecks) rather than sea life. Researchers including Robert Ballard, who found the Titanic, have explored these waters. In recent years, a NOAA-led team even located the intact wreck of the schooner Ironton, sitting upright with its three masts still standing.
Where to see it
Start at the Great Lakes Maritime Heritage Center in Alpena (admission is free), then book a glass-bottom boat tour aboard the Lady Michigan through Alpena Shipwreck Tours (seasonal, roughly late May–early October).