Peninsula State Park
The region's largest state park, with an 18-hole golf course, bike and hiking trails, Nicolet Beach, a lookout tower and Eagle Bluff Light Station. It is also where Northern Sky Theater performs in summer.
Region
Five state parks, nineteen county parks, beaches, paddling, fishing and dark skies — where to go outside in Door County.
The state parks are the backbone of a Door County outdoor trip, and they are not interchangeable. Peninsula is the largest and most developed; Newport is the quietest and darkest; Whitefish Dunes has the sand; Potawatomi is the wooded, western gateway; Rock Island requires two ferries and rewards the effort with ten miles of trail.
A Wisconsin State Park System vehicle admission sticker is required at the four mainland parks. Rock Island also requires ferry tickets.
The region's largest state park, with an 18-hole golf course, bike and hiking trails, Nicolet Beach, a lookout tower and Eagle Bluff Light Station. It is also where Northern Sky Theater performs in summer.
Eleven miles of Lake Michigan shoreline and thirty miles of hiking trail, with backpack camping and a reputation for darkness. It is Wisconsin's only internationally designated Dark Sky Park.
Good to know Bring a red-light headlamp for night walks and check the moon phase if you want stars.
A mile of sand beach and the highest sand dunes in Wisconsin, with more than fourteen miles of trail including a route to Clark Lake.
More than two miles of Green Bay shoreline, six miles of hiking trail, bike trails, camping and a boat ramp. The park protects a piece of the Niagara Escarpment on the county's southern edge.
A 906-acre island park one mile northeast of Jackson Harbor, with ten miles of hiking trail, camping, swimming and Pottawatomie Lighthouse. Access is by the Karfi passenger ferry from Washington Island.
The nineteen county parks are where the peninsula's geology is most dramatic. Cave Point County Park, inside Whitefish Dunes, is known for sea caves cut into the limestone by Lake Michigan. Ellison Bluff has a wooden walkway and observation deck at the edge of hundred-foot bluffs. Door Bluff Headlands, the county's northernmost point, is preserved in its natural state with no facilities.
Cana Island, a nine-acre county park since 2007, combines a beach walk with the lighthouse. Frank E. Murphy Park near Egg Harbor has 1,600 feet of sand beach on Horseshoe Bay, plus a boat launch.
Green Bay is generally the calmer side; Lake Michigan's east shore is colder and more exposed. Morning is the reliable window.
The county's boat launches and piers support both Green Bay and Lake Michigan fishing. Baileys Harbor's shoreline is known for salmon and trout.
Municipal beaches in the villages, state park beaches at Nicolet and Whitefish Dunes, and the limestone cobbles of Schoolhouse Beach on Washington Island.
Verification
Factual details on these pages were checked against the sources below on 2026-10-29 . Interpretive prose, itineraries and recommendations are editorial judgement, not sourced fact.
Park acreages, lighthouse dates, ferry crossing times and community descriptions are taken from Destination Door County, the Coastal Byway and the relevant land manager. Opening hours, prices and individual business details are deliberately not published here because they change seasonally.