1966 Hiking Challenge

The 1966 Hiking Challenge is a 19-week, ranger-led program covering 66 miles across Indiana Dunes National Park, with individual hikes ranging 1.1 to 7.1 miles through different park ecosystems. Difficulty spans from easy loops to moderately strenuous dune climbs; ranger guidance makes it accessible to varied fitness levels. Participants explore lake shorelines, wetlands, forests, and historic structures. Complete all 19 hikes to earn a free medallion and water bottle.

Quick facts

Distance Miles: 66
Route Type: Varies by weekly hike
Difficulty Level: Variable (Easy to Moderate-Strenuous)
Elevation Gain Feet: 0

Trail profile

Distance Miles: 66
Route Type: Varies by weekly hike
Difficulty Level: Variable (Easy to Moderate-Strenuous)
Elevation Gain Feet: 0
Estimated Time: 1 to 5 hours depending on weekly hike length and pace. Shorter hikes (1–3 miles) typically 1–2 hours; longer hikes (5–7 miles) take 3–5 hours.
Trail Surface: Mostly sand and compacted earth with some boardwalk sections. Terrain varies weekly—some areas are harder-packed, others are loose sand requiring more effort.
Trail Features: Sand dunes
Lake Michigan shoreline
Wetlands and marshes
Deciduous and evergreen forest
Historic homesteads and farm structures
Trail Highlights: Comprehensive tour of the entire Indiana Dunes ecosystem. Ranger-led education on dune geology, ecology, and park history. Summit overlooks with 360-degree park views. Completion rewards (free medallion and water bottle) at the final Outdoor Adventure Festival on September 14.

Trailhead & access

Trailhead Location: Multiple locations throughout Indiana Dunes National Park. Specific trailheads change weekly. Check the park website or call 219-395-1882 for each week's meeting location.
Shuttle Required: 0
Shuttle Details: No shuttle required. Meet the ranger at the designated trailhead. Parking and specific logistics vary by weekly hike location.

Permits & conditions

Permit Details: No permit required for the challenge. Park entrance fee is mandatory: $25 per private vehicle (7-day pass) or $45 annual National Parks pass.
Fees: $25 per private vehicle for 7-day park access. Annual National Parks pass ($45) also valid. Entrance fee required.
Trail Status: Open—Challenge runs May 11 through September 14, Saturdays only at 8 AM.
Seasonal Closures: Challenge runs May–September only. Winter months (October–April) are closed for this program. Park remains open year-round for other activities.

Facilities & rules

Restrooms At Trailhead: 0
Water Sources: Carry all water you need. No reliable potable water sources exist on trails. Some hikes approach Lake Michigan and wetlands, but untreated water is not safe to drink.
Accessibility: Very few trails are wheelchair accessible or barrier-free. Most trails feature uneven sand terrain with significant elevation changes. Visit nps.gov/indu/planyourvisit/accessibility.htm or call 219-395-1882 for accessible alternatives.

Safety & strategy

Hazards: Extreme heat and sun exposure
Dehydration risk
Loose sand and unstable footing
Steep dune climbs
High exertion on uneven terrain
Limited trail accessibility
Sand glare and UV intensity
Hazard Details: Sand dunes are energy-draining; even 1–2 mile hikes feel strenuous due to unstable footing. Loose sand shifts underfoot—worn or flat-soled boots slip easily. Full sun on open dunes is brutal; heat exhaustion is real if under-hydrated. Very few trails accommodate mobility challenges or accessibility needs. Elevation changes vary significantly between weekly hikes.
Cell Service: Unreliable. Assume no cellular signal in dune areas. Hike with a fully charged phone and inform someone of your planned route and expected return time.
Crowd Level: Moderate to High. Ranger-led Saturday morning format attracts consistent weekly participation, especially peak summer (June–August).
Peak Crowd Times: July–August Saturdays, especially 8–10 AM. June and September attract fewer participants due to lower regional tourism.
Best Season: Late Spring through Early Fall (May 11–September 14). Peak season June–August when crowds are highest and weather most stable.
Best Time To Visit: May 11 through September 14, Saturdays at 8 AM. Arrive 20 minutes early to meet your ranger. June–August peak summer heat is intense; May and September offer cooler conditions. Start early to avoid midday sun exposure.
Tips Advice: Carry 2–3 liters of water minimum—sand hiking depletes hydration fast.
Wear sturdy, broken-in boots with ankle support; loose sand shifts underfoot.
Apply sunscreen liberally every hour; glare off sand intensifies UV exposure.
Bring trekking poles to reduce dune exertion and joint strain.
Wear a wide-brimmed hat and sunglasses.
Eat carbs and electrolytes before and during hikes; sand terrain burns serious fuel.
Tell someone your planned hike and return time.

More details

Park Area: Multiple locations throughout Indiana Dunes National Park. Each week's hike uses a different trailhead. Check the park website each week for specific meeting locations.
Trail Markers: Ranger-led hikes include real-time guidance. Some trails have blazes or cairns; others rely on well-worn paths and ranger direction. Carry a park map as backup navigation.
Dogs Allowed: Yes, on leash only. All pets must be on a leash 6 feet or shorter. Verify specific weekly hike accessibility for large dogs on sandy terrain.
Shade Level: Mixed. Open sand dunes provide full sun exposure; forest sections offer shade. Summer peak sun is intense on dunes. Bring hat, sunglasses, and apply sunscreen hourly.
Emergency Contacts: Indiana Dunes Visitor Center: 219-395-1882. Emergency: 911.
Map Recommended: 1
Snow Dates: Challenge runs May–September (snow-free months). Winter snow possible November–March outside challenge season.
Mud Season: Possible early May (spring rains) and late September (fall rains). Sand drains quickly, but heavy rain creates muddy patches. Wear waterproof boots and consider gaiters if rain is forecast.
Wildflower Peak: May–July. Native dune wildflowers peak in late spring and early summer. Specific blooms vary by weekly hike location.
Fall Colors Peak: Late September–October. Challenge ends mid-September, just before peak autumn foliage in the region.
Bug Season: Moderate to High June–August. Bring insect repellent. Mosquitoes are worst near dawn, dusk, and wetland areas.
Insider Tips: Arrive 20 minutes before 8 AM to meet your ranger and get that week's hike details.
Check the park website Thursday before your Saturday hike to confirm trailhead and parking specifics.
Don't wait until peak summer—early May and September hikes have lower crowds and cooler temperatures.
Pace the 19 hikes across weeks or complete multiple on your own schedule using the check-off sheet available at the Visitor Center.
Trekking poles reduce dune exertion by 25–30%; they're game-changers on sand.
Pick up your free medallion and water bottle at the final Outdoor Adventure Festival (September 14).
Recent Updates: Established 2024/2025 to celebrate Indiana Dunes National Park's 1966 founding year. Check nps.gov/indu or call 219-395-1882 for the latest weekly hike schedule, weather updates, and any changes.
Family Friendly Notes: All ages welcome with adult supervision. Minors must stay with a parent or guardian at all times. Shorter hikes (1–2 miles) suit young children best. Bring abundant water, frequent breaks, and high-SPF sunscreen. Sun protection is non-negotiable for kids: hats, sunglasses, and shade breaks every 20–30 minutes.
Nearby Facilities: Paul H. Douglas Center: Water, restrooms, check-off sheets, and park information. Visitor Center (same amenities). Nearest town services in Valparaiso, Michigan City, and Porter (10–20 minutes by car).
Review Summary: Participants praise the well-structured, ranger-led format and comprehensive park exploration. Most note that sand terrain requires more effort than flat trails of similar mileage. The weekly structure is motivating, and the completion reward (medallion and water bottle) is tangible. Hikers recommend bringing more water than expected and starting early to avoid midday heat.

Frequently asked questions

Can I do this if I'm not super fit?

Yes. Hikes range from easy (1.1 miles) to challenging (7.1 miles). Start with the shorter weeks and pace yourself across all 19. Ranger guidance makes it accessible—most hikes are 1–3 miles.

Do I have to complete all 19 hikes?

No. The medallion and water bottle go to those who finish the series, but a check-off sheet lets you hike independently at your pace—ranger-led or solo. Pick weeks and hikes that fit your schedule.

Is it safe to hike alone?

Ranger-led Saturdays (8 AM) are supervised. For independent check-off hikes, go with a partner. Cell service is spotty—always tell someone your planned route and expected return time.

What should I definitely bring?

Bring 2–3 liters of water minimum, sunscreen (reapply every hour), a hat, sunglasses, sturdy boots with ankle support, and trekking poles for dune climbs. Snacks and electrolytes are critical—sand exertion burns serious fuel.

Are these hikes muddy or wet?

Sand drains quickly, but early May and late September can be muddy after rain. Wear waterproof boots and gaiters if rain is forecast. Most of the May–September season is dry.

Can kids do the challenge?

Yes—all ages welcome with adult supervision. Younger kids do best on shorter hikes (1–2 miles). Bring abundant water, frequent breaks, and sun protection (hats, sunscreen, sunglasses mandatory).

When and where do I get my medallion?

Completion medallions and water bottles are awarded at the final Outdoor Adventure Festival on September 14. Early finishers can claim theirs then. Check nps.gov/indu for event details.