Indiana Dunes National Park

IN
Lake Michigan's might has influenced Indiana Dunes for millennia. Wind and waves have shaped the land, leaving a rich mosaic of habitats along these 15 miles of Indiana coast. Over 50 miles of trails lead through shifting sand dunes, quiet woodlands, sunny prairies and lush wetlands. Known for its striking plant and bird diversity, it's easy to find inspiration throughout the park’s 16,000 acres.
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WEATHER INFO

On average, the warmest month is July and the highest recorded temperature was 105F in 1934. The coolest month is January, with the lowest recorded temperature of -25F in 1985. June sees the most precipitation with an average rainfall of 4.66 Inches.

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DIRECTIONS INFO

Visitors can access the national park via Interstate 94, the Indiana Toll Road (Interstate 80/90), U.S. Highway 12, U.S. Highway 20, Indiana State Road 49, and various other local roads. The Indiana Dunes Visitor Center is located on Indiana State Road 49, between U.S. Highway 20 and Interstate 94 (1215 IN-49, Porter, IN 46304). For a driving map to the Indiana Dunes Visitor Center or other locations, check out our maps page.
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CAUTION

US-20 Railroad Crossing Blocked 6/1 - 6/5

US-20 will be blockaded from 6/1 - 6/5 for railroad crossing repairs at County Line Rd. Detour signs will be posted at various locations. As an alternative route, drive on Route 12 to visit park beaches and please drive safely.

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PARK CLOSURE

Partial Closures to Marquette Greenway Trail and Glenwood Dunes Trail

Marquette Greenway construction will require closing sections of the Glenwood Dunes Trail (April–December 2026) and Little Calumet / Mnoké Prairie Trail (May–December 2026). Closure dates may shift as work progresses. Please follow all posted closures and check the park website or NPS App for updates.

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PARK CLOSURE

Mount Baldy Closure

Closure: The Mount Baldy Access Site will be closed from late March through mid-June, 2026, for sand removal and shoreline stabilization work.

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INFORMATION

Partial Trail Closure at Portage Lakefront and Riverwalk

Closed portion of Portage Lakefront and Riverwalk Trail along Burns Waterway due to unsafe conditions from erosional damage. This trail portion will remain closed while funding is sought for repair work. Pier access remains open on either side of closure.

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