Park guide
Indiana Duneswhen to catch its peaks
When should I visit Indiana Dunes to catch its natural highlights?
At Indiana Dunes, the Heron Rookery's spring wildflowers are best from mid-April through May, and fall color peaks around mid-October.
Checked Sep 30. Sources: National Park Service, Heron Rookery exploration (Indiana Dunes) ↗ (opens in a new tab), National Park Service, Indiana Dunes things to do ↗ (opens in a new tab) National Park Service sources: no claim to original U.S. Government works.
The peaks through the year
- Spring wildflowers at the Heron Rookery
mid-April through May
The Heron Rookery's woodland ephemerals, not the beaches
“The best time to see ephemerals in bloom is from mid April through May.”
- Fall color
around mid-October
The park; color from late September through October
“The colors of fall can be enjoyed from late September through October, with the peak color occurring around mid-October.”
On one calendar
- Spring wildflowers at the Heron RookeryBest viewing: mid-April through May
- Fall colorUsual peak: around mid-October
Solid: a usual peak, the best viewing time or when animals are most numerous. Hatched: a broader season, never a peak.
Choose what you want to catch
- Fall foliageSee the guide →
Usual peak: around mid-October, 3 best spots
- WildflowersSee the guide →
Usual peak: Most years, the wildflowers peak from late April through mid-May, 2 best spots
Where to see it
Before you go
Park alerts
NPS lists these 8 notices for Indiana Dunes. Read each notice for the affected area and dates.
- Park Closure: Partial Trail Closures on Bailly / Chellberg Trail
- Park Closure: Partial Trail Closure - Dunewood Trace
- Park Closure: Closure - Hobart Woodland Trail
- Park Closure: Partial Closure - Upland Trail
- Park Closure: Closure - Heron Rookery Trail
- Caution: Water Safety Alert
- Park Closure: Partial Closures to Little Calumet River Trail and Glenwood Dunes Trail
- Caution: Partial Trail Closure at Portage Lakefront and Riverwalk
Checked Wed, Sep 30, 2:03 PM EDT, source: National Park Service. No claim to original U.S. Government works.
- Fees: Driving straight through needs no fee; stopping to walk a trail, use the beach or a picnic shelter does. Official page ↗
Other peaks nearby and other seasons
Indiana Dunes in pictures

Questions people ask
When are the spring wildflowers at their best?
From mid-April through May, in the woods and floodplain at the Heron Rookery.Source: National Park Service, Heron Rookery exploration (Indiana Dunes) ↗ (opens in a new tab)
When is fall color at its peak?
Around mid-October; color can be enjoyed from late September through October.Source: National Park Service, Indiana Dunes things to do ↗ (opens in a new tab)
Do I pay to drive through?
No; you pay when you stop to use a trail, the beach or a picnic shelter.Source: National Park Service, Indiana Dunes fees and passes ↗ (opens in a new tab)
How we know
- Sep 30Park ServiceSpring ephemerals at the Heron Rookery bloom best from mid-April through MaySource (opens National Park Service, Heron Rookery exploration (Indiana Dunes) in a new tab)
- Sep 26Park ServiceFall colors late September through October, peak around mid-October; spring wildflowers April and MaySource (opens National Park Service, Indiana Dunes things to do in a new tab)
- Sep 30Park ServicePassing through needs no fee; stopping to use trails, beaches or picnic shelters doesSource (opens National Park Service, Indiana Dunes fees and passes in a new tab)
- National Park Service sources: no claim to original U.S. Government works.