The 3 Dune Challenge at Indiana Dunes State Park offers a fun way to explore the region’s stunning landscapes. This celebrated 1.5-mile trail takes hikers up Indiana’s three tallest dunes—Mt. Jackson, Mt. Holden, and Mt. Tom—with a total climb of 552 vertical feet! Embrace the challenge and reward yourself with lakeside views, a good workout, and well-earned bragging rights when you complete the loop!

3 Dune Challenge vista runner

Overview of The 3 Dune Challenge

Location: 1600 N 25 East, Chesterton, IN 46304

The 3 Dune Challenge is a self-guided hike along Trail 8, near the State Park’s Nature Center.

  • Mt. Jackson (176 feet): This is the smallest dune on the challenge, perfect for warming up your legs.
  • Mt. Holden (184 feet): This dune is known for its steep ascent and incredible vistas.
  • Mt. Tom (192 feet): The tallest dune offers a rewarding climb with a well-maintained staircase that makes the journey more manageable while delivering breathtaking views.

The hike is popular year-round. Spring brings blooming wildflowers, summer delivers sandy adventure, fall is all about colorful foliage, and winter provides crisp air and snowy vistas.

3 Dune Challenge winter

Parking and Trailheads

The closest parking lot to the trailhead is the Nature Center Parking Lot. From there, follow the signs for Trail 8, where The 3 Dune Challenge begins. Parking is usually accessible during the week, but on weekends and holidays, it’s best to arrive early.  Restrooms are conveniently located near the parking area. The park is open daily from 7 a.m. to 11 p.m.

Nature Center Sign

Costs and Permits

The Indiana Dunes State Park charges $7.00 per vehicle(or Indiana residents and $12.00 for out-of-state visitors. For frequent visitors, unlimited Annual State Park Entrance Passes are available for $50.00 (Indiana residents) or $70.00 (non-residents). 

Note: If you also want to visit Indiana Dunes National Park, there are separate entrance fees.

A park ranger stands in front of a brick entrance building.

Tips for Hiking on Dunes

Hiking on sand can be deceptively tougher than standard trails, but it adds an extra layer of excitement to the challenge. Here’s what to expect:

  • Deep Sand: Much of the trail is composed of loose and coarse sand that can slow your progress. For each step forward, you might slide back. Don’t rush things, and embrace the terrain!
  • Paths and Stairs: The two smaller dunes have steep, sandy paths, while Mt. Tom has a handy staircase that makes for a slightly easier ascent—especially if you’re on a hike with little ones.
  • Leg Workout: Climbing sand dunes is a serious leg workout. Take it slow and steady, or jog for an intense challenge. In fact, running or walking on sand is 1.6x more difficult than on solid ground!
  • Plan for Weather: Hot days at the dunes can amplify the difficulty, so early mornings or cooler months are always ideal for taking on the challenge.
  • Stay on the Trail: Remain on the marked trail to avoid brushing up against poison ivy, limit exposure to ticks, protect sensitive habitats, and prevent erosion. 

3 Dune Challenge Couple

What to Do, Bring & Wear

Preparation is key to a safe and enjoyable hike at the Indiana Dunes:

  • What to Bring: Plenty of water, sunscreen, insect repellent, and snacks.
  • Stay Safe: Stick to marked trails to avoid poison ivy and protect the fragile dune ecosystem.
  • Dog-Friendly: Dogs are welcome throughout the State Park but must be kept on a leash at all times. Be sure to bring water for your pup and waste bags to help keep the park clean and enjoyable for everyone.

Take your time and enjoy the journey—most hikers complete the loop in 45-75 minutes, but there’s no right or wrong way to do it, as long as you have a great time! After the hike, stop by the Indiana Dunes Visitor Center to pick up your free 3 Dune Challenge sticker or purchase a commemorative t-shirt, hoodie, or other merch from the Beaches & Beyond Gift Shop.

3 Dune Challenge Merchandise