Introduction

Door County's major draws center on its shoreline: lighthouses, a large state park, and two ferry-accessible islands. We checked current facts on each.

The Lighthouses

Door County is widely described by tourism sources as having more lighthouses than any other county in the United States, with a commonly cited count of

11. Wikipedia's own entry, however, counts 10 historically significant lighthouse structures among a broader total of 50 lighted navigational aids around the county's Green Bay and Lake Michigan shorelines. We couldn't independently verify the "most of any US county" superlative against a national government lighthouse database, so treat it as a widely repeated regional claim rather than an audited fact.

Peninsula State Park

A 3,776-acre park founded in 1909, with 8 miles of Door County shoreline, roughly 20 miles of hiking trails, and 13 miles of off-road bike trails. It's home to Eagle Bluff Lighthouse, built in 1868 and listed on the National Register of Historic Places, open for paid tours roughly mid-May through mid-October. The park also has more than 460 campsites, an 18-hole golf course, a beach, and a summer theater.

Washington Island

Reached via the Washington Island Ferry Line from Northport, at the tip of the peninsula — a roughly 30-minute crossing carrying passengers, vehicles, and freight, running daily.

Rock Island

A separate, further step: from Washington Island, you reach Rock Island via a second, passenger-only ferry called the Karfi, departing from Jackson Harbor (a drive of about 8.4 miles across Washington Island from its main ferry dock). The Karfi crossing takes about 10 minutes and runs only late May through early October, with no vehicles or bicycles allowed. Rock Island itself is genuinely undeveloped state park land, with no cars or bikes permitted anywhere on it. Its main features are the Pottawatomie Lighthouse, built in 1836 and the oldest light station in Wisconsin and on Lake Michigan, and the stone boathouse and Great Hall built starting in 1928 by inventor Chester Thordarson, who owned much of the island before Wisconsin's DNR purchased it from his heirs in

Practical Tips

• Reaching Rock Island takes real planning: two separate ferries, both with limited schedules, and the second running only about four and a half months a year.

• Eagle Bluff Lighthouse's tour season (mid-May to mid-October) roughly tracks with Rock Island's Karfi ferry season — a useful mental anchor if you're trying to fit both into one visit.

• Don't assume every lighthouse in the county is open to the public the way Eagle Bluff and Pottawatomie are — many of the wider "50 lighted aids" figure are simple navigational markers, not visitor sites.

Sources and Verification Notes

Peninsula State Park's size, trail mileage, and Eagle Bluff Lighthouse's history were checked against the Wisconsin DNR's own site. Washington Island and Rock Island ferry details were checked against the Washington Island Ferry Line's own site. The lighthouse-count superlative was checked against Destination Door County's own marketing and Wikipedia's more conservative count, and is presented with that discrepancy flagged rather than resolved to a single number.