Sea caves, ship canals, and century-old shipyards: Sturgeon Bay, Wisconsin earns every square foot

Sturgeon Bay’s got the whole peninsula figured out

You don’t expect a city of this size to sit on a narrow strip of land between two Great Lakes waterways, but Sturgeon Bay does exactly that.

The largest city on Wisconsin’s 90-mile Door Peninsula, it straddles a ship canal that connects Green Bay to Lake Michigan. Great Lakes freighters still slide through the middle of town.

You can watch them from parks, bridges, and a walkable waterfront lined with galleries. But the canal, the cliffs, and what happened in the shipyards here go back further than you’d guess.

A canal that cut 150 miles off the trip

Settlers arrived in 1850, and within a few decades, the city incorporated and a canal punched through the peninsula to Lake Michigan. That canal changed everything.

Ships heading from Green Bay to Milwaukee or Chicago no longer had to navigate the Porte des Morts strait at the peninsula’s northern tip, a passage so dangerous they named it Death’s Door.

The shortcut trimmed about 150 miles off the route and turned Sturgeon Bay into a working port. By 1896, shipbuilders had set up shop along the waterfront.

Shipyards that built warships and still launch vessels today

August Rieboldt and Joseph Wolter moved their shipbuilding operation from Sheboygan to Sturgeon Bay in 1896, and the waterfront never looked back.

During World War II, local yards turned out dozens of military vessels, from submarine chasers and frigates to tugboats and cargo ships. That shipbuilding tradition didn’t stop when the war ended.

Fincantieri Bay Shipbuilding still operates on a 63-acre shipyard that dates to 1918. You can see the cranes and hulls from across the harbor.

Peer through a real submarine periscope at the maritime museum

The Door County Maritime Museum sits right on Sturgeon Bay’s working waterfront at 120 North Madison Avenue. Founded in 1969, the current location opened in 1997 and draws about 95,000 visitors a year.

Four galleries walk you through lighthouses, model ships, shipwrecks, and the region’s shipbuilding roots. You can board the John Purves, a restored 1919 Great Lakes tugboat, for a guided 40-minute tour.

Inside the museum, a submarine periscope lets you look straight across the bay at Bay Shipbuilding’s active yard.

Ride the elevator up Door County’s tallest structure

The Jim Kress Maritime Lighthouse Tower stands 110 feet tall, making it the tallest structure in all of Door County. It opened in 2021 with interactive exhibits on every floor.

You start with an elevator ride to the top, then work your way down through 10 stories covering everything from the peninsula’s geology to commercial fishing to shipbuilding.

The enclosed observation deck at the top gives you panoramic views of Sturgeon Bay, the ship canal, the city’s three bridges, and the working waterfront all at once.

Three lighthouses mark the canal’s long history

Sturgeon Bay keeps three lighthouses, and each one ties back to the ship canal.

The North Pierhead Light went up in 1882, a bright red beacon at the Lake Michigan entrance that the U.S. Coast Guard still maintains as an active navigation aid.

The Ship Canal Station Light Tower, built in 1899, is a 78-foot steel cylinder on the northern bank.

Sherwood Point Lighthouse, built in 1883 from red brick instead of the usual cream-colored brick, was the last manned lighthouse on the Great Lakes before its automation in 1983.

Hike limestone cliffs at a former federal quarry

Potawatomi State Park covers 1,225 acres on the shore of Sturgeon Bay just northwest of the city.

Established in 1928, the land was once a federal limestone quarry called Government Bluff, and workers shipped the stone to harbors all across Lake Michigan.

Now you walk about 9.5 miles of hiking trails and ride 8 miles of off-road bike trails through rolling terrain bordered by steep slopes and rugged limestone cliffs.

The park also holds 123 campsites, a fishing pier, kayak access, and over 200 recorded bird species.

The Ice Age Trail ends right here in Sturgeon Bay

Potawatomi State Park marks the eastern endpoint of the Ice Age National Scenic Trail, one of only 11 National Scenic Trails in the country.

The full route stretches about 1,200 miles across Wisconsin, from Interstate State Park near the Minnesota border all the way to Sturgeon Bay.

It follows the path of the last continental glacier, passing kettles, eskers, and moraines along the way. The Sturgeon Bay segment runs about 14 miles through forest, along the city’s waterfront, and into the state park.

Watch 30-foot waves crash into 440-million-year-old rock

Cave Point County Park sits about 10 miles northeast of downtown Sturgeon Bay, and admission is free.

This 18.6-acre park packs 900 feet of Lake Michigan shoreline where waves have carved dolomite limestone ledges and underwater caves into rock that dates to the Silurian period, roughly 400 to 440 million years ago.

Waves can top 30 feet when they slam the cliffs.

Kayakers paddle into sea caves you can only reach from the water, and a half-mile trail through birch and maple connects to Whitefish Dunes State Park next door.

Climb Wisconsin’s tallest sand dune for two-lake views

Whitefish Dunes State Park protects 867 acres and the most significant sand dunes on Lake Michigan’s western shore.

Old Baldy, the tallest dune in Wisconsin, rises 93 feet above lake level, and from the observation platform at the top, you can see both Lake Michigan and Clark Lake.

The park holds 1.5 miles of sandy beach and more than 14 miles of trails.

Eight successive prehistoric Native American village sites within the park sit on the National Register of Historic Places. The Black Trail connects you straight to Cave Point.

Tart cherry orchards have bloomed here since the 1890s

Door County started growing cherries in the 1890s after University of Wisconsin researchers found that tart cherry trees thrived in the peninsula’s lake-effect climate.

Green Bay and Lake Michigan moderate the temperatures and protect against late frosts, while shallow soil over dolomite limestone bedrock drains the roots just right.

By the 1950s, about 700 growers produced up to 50 million pounds of cherries a year, earning the area the nickname Cherryland USA. Today, roughly 95 percent of Wisconsin’s tart cherries still come from Door County.

A bascule bridge and freighters that stop traffic

The West Waterfront Promenade gives you a walkable path along the harbor where you can see working shipyards and the towering Gantry Crane at Bay Shipbuilding up close.

Third Avenue runs through the heart of downtown, lined with galleries, specialty shops, and locally owned stores.

The Michigan Street Bridge, built in 1931, is the only overhead truss, Scherzer-type, double-leaf rolling-lift bascule bridge left in Wisconsin, and it landed on the National Register of Historic Places in 2008.

When Great Lakes freighters pass through the canal, both this bridge and the adjacent Maple-Oregon Bridge open at the same time, and crowds gather to watch.

Explore Sturgeon Bay in northeastern Wisconsin

You can reach Sturgeon Bay from Milwaukee in about two and a half hours by heading north on Interstate 43 and Highway 57, roughly 150 miles. From Chicago, the drive runs about 230 miles, or four hours.

The nearest commercial airport is Austin Straubel International in Green Bay, about 45 miles south. Potawatomi State Park and Whitefish Dunes State Park both require a Wisconsin state park vehicle admission sticker.

Cave Point County Park is free and open daily, so you can start there without a pass.

This article was created with AI assistance and human editing.

Read more from this brand:

• 11 lighthouses, goats on rooftops, and a strait that swallowed whole ships: Door County
• Sea caves, fish boils and goats on rooftops — welcome to Wisconsin’s Door County
• This Wisconsin Peninsula Has 300 Miles of Coastline and Most Americans Have Never Heard of It