Ephraim and Green Bay viewed from Eagle Tower in Peninsula State Park.

State Park · Lake Michigan

Peninsula State Park

Door County's Green Bay shoreline, with woodland trails and harbor views.

Photo: Richie Diesterheft from Santa Barbara, CA, USA · CC BY-SA 2.0

Ephraim Wisconsin from Eagle tower in Peninsula State Park.jpg by Richie Diesterheft from Santa Barbara, CA, USA · CC BY-SA 2.0. Resized and converted to WebP; display crops vary.

Official website Plan a trip around it

On the coast

About Peninsula State Park

Peninsula State Park faces Green Bay, an arm of Lake Michigan, on Door County's western side. Its shoreline, campground areas and trail network make it a destination rather than a single scenic stop. Plan around reservations and current access, leaving time to explore the neighboring villages without rushing between overlooks.

LakeLake Michigan
RegionWisconsin
Park typeState Park
BeachYes
CampingYes

Live · Peninsula State Park

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Visiting Peninsula State Park

Best time

July and August for beach days and outdoor summer theater; early to mid-October for brilliant hardwood color.

Time needed

A full day

Best months
January: off-season February: off-season March: off-season April: off-season May: off-season June: best July: best August: best September: best October: best November: off-season December: off-season

Don't miss

Highlights of Peninsula State Park.

  • Tour the 1868 Eagle Bluff Lighthouse in season, a brick keeper's home and tower above the islands of Green Bay.
  • Climb Eagle Tower, or stroll its gently rising ramp through the treetops, for sweeping views over Green Bay.
  • Pick your way along the rocky Eagle Trail beneath the bluffs — the park's most rugged hike.
  • Swim or launch a kayak at Nicolet Bay, where a sandy beach faces Horseshoe Island.

Know before you go

Tips for visiting Peninsula State Park.

  • Campsites fill quickly once reservations open for summer and fall weekends, so plan months ahead.
  • Catch sunset from the west-facing shore, whether along the Sunset Bike Trail or at Nicolet Bay.
  • A Wisconsin state park vehicle admission sticker is required; buy one at the entrance or online.

Get your bearings

On the shoreline.

Loading the map. The links and itinerary below are always available.

No verified point location is available. This is a lake overview, not this place's exact position. Precise shipwreck sites are not plotted.

Black-and-white basemap by OpenStreetMap. Great Lakes highlighted in color. Hold Ctrl (or Command) while scrolling to zoom. Use two fingers on touch screens.

Lake outlines: Natural Earth (public domain). Town centers: GeoNames (CC BY 4.0). Not for navigation.

Good to know

Questions about Peninsula State Park

Where is Peninsula State Park?
Peninsula State Park is on the Lake Michigan shore of Wisconsin.
When is the best time to visit Peninsula State Park?
July and August for beach days and outdoor summer theater; early to mid-October for brilliant hardwood color.
How much time do you need at Peninsula State Park?
Allow a full day to explore Peninsula State Park.
Does Peninsula State Park have a beach?
Yes. Peninsula State Park has a Lake Michigan beach. Check local beach advisories and swim conditions before going in the water.
Can you camp at Peninsula State Park?
Yes. Peninsula State Park offers camping. Summer sites can book up early, so reserve through the official park system.

Travel well

Make it a good visit.

Check access before leaving.

Opening hours, parking, permits and step-free access change by season. Confirm your needs with the official destination; a map pin is not an entrance.

Give the shoreline time.

Leave room for weather delays and a quieter side trail. Stay on marked paths, respect closures and support the local communities that make the coast special.

Travel thoughtfully

Look beyond the air forecast.

Waves and water temperatures can tell a very different story. Use marine forecasts and local beach advisories before any water activity.

Official weather resources

Road trips

Put this place on a longer route.

7–10 days

Lake Michigan Circle Tour

Connect shoreline towns, beaches and cities around Lake Michigan.

View the itinerary

4-6 days

Wisconsin Harbor & Lighthouse Trail

A northbound route from Milwaukee through dune country to Door County.

View the itinerary

Events

Seasonal traditions on this coast.

These events share the region and lake—not necessarily this destination. Confirm current dates with organizers.

June; additional fall programs vary

Door County Lighthouse Festival

A maritime-museum program connecting Door County's light stations.

Organizer & event guide