If you are driving the Great River Road or Route 66, these five natural stops are detours you need to consider.
Illinois is not going to compete with Utah, California or Alaska when it comes to nature, and it does not need to. What Illinois quietly offers is something different. Small canyons hidden between cornfields, a big river that keeps changing shape, quiet trails where you can walk for two hours without seeing anyone, and a handful of places that surprised me enough to make me stop and stay longer than I had planned.
I drove across Illinois last May, mostly following the Mississippi River south from Galena to Alton, then looping back to Chicago via Route 66. Somewhere between those two famous roads, I ended up spending a lot of time in state parks and nature reserves than I did in any town. If you are passing through Illinois on either of those drives, or just looking for a slow weekend away from Chicago, these are the five places I would send you first.
1. Apple Canyon Lake and the Galena Goat Trek
The first stop on my list is the one I never planned for. In the charming town of Galena there is an activity I didn’t know I needed. It’s called the Hoof It Goat Treks.
The concept is simple. You show up at a small farm near Apple Canyon Lake, you go for a short hike and six to seven goats follow you. That is it. The goats know the trail better than you do, they set the pace, they stop when they want to eat, and you follow along. The whole thing lasts about an hour, maybe a little more if your goat decides to take the long way.
I did not know what to expect, and it ended up being one of the highlights of my entire trip. There is no way to explain why walking a goat through a field is as relaxing as it is, but it is. You cannot look at your phone because you need to pay attention to the goat. You cannot rush, because the goat will not let you. You end up just walking, breathing, and looking around at the forest.
Apple Canyon Lake itself is worth a look after the hike. It’s a short, but steep hike and you can see the nearby waterfall. It’s the perfect short and quick picnic getaway that you need if you are on the road.
INSIDER TIP: Book the goat trek in advance. It is small, it sells out on weekends, and the farm only runs a limited number of hikes per day.
2. Upper Mississippi River National Wildlife and Fish Refuge
From Apple Canyon Lake, the road pulls you south toward the Mississippi. The Upper Mississippi River National Wildlife and Fish Refuge stretches for 261 miles across four states, protecting one of the most important migration corridors in North America, and if you know where to stop, you can access it from several points along the Illinois side.
I stopped near the Quad Cities. The refuge here runs along the river and is easiest to reach from the Illinois side around Rock Island and Moline. There are boardwalks, quiet backwater channels, and stretches of forest that feel completely disconnected from the industrial history of the towns nearby. Bald eagles, herons, and pelicans all pass through this section, and depending on the season, you can see hundreds of them at once.
You can also rent a bike here and cover a lot more ground than you can on foot. The Great River Trail runs along the refuge for miles, and there are guided tours that take you through the best spots with someone who actually knows what you are looking at. I did the guided version, and it was one of those decisions I did not overthink at the time but ended up being one of the best hours of my trip.
If you have the time, do the tour. If you do not, at least rent a bike.
3. Starved Rock State Park and Illinois Canyon
Starved Rock is the most famous state park in Illinois, and for good reason. There are 18 canyons here, most of them carved by small streams that drop over sandstone bluffs, and depending on the season, you can find waterfalls in almost all of them. In spring, everything is full. In summer, most of the smaller falls dry up. In winter, the whole park freezes and turns into a strange ice world that draws climbers from across the Midwest.
My favorite trail was Illinois Canyon. It sits at the eastern end of the park, farther from the visitor center, which means fewer people make it out that far. The trail follows a small stream deep into a narrow canyon, and at the end you find a small waterfall dropping into a shallow pool. The walk is easy, mostly flat, and the payoff feels bigger than the effort you put in.
The park’s other canyons are also worth your time if you have a full day. St. Louis Canyon is one of the most reliable for water year round. French Canyon is short and dramatic, close to the lodge. Wildcat Canyon has the tallest waterfall in the park. LaSalle Canyon has a trail that lets you walk behind the waterfall itself when the flow is right. If you only have a few hours, do Illinois Canyon and St. Louis Canyon. If you have a full day, do a loop that connects three or four.
4. Matthiessen State Park and Lake Falls
Matthiessen is right next door to Starved Rock, about ten minutes away by car, and almost nobody who visits Starved Rock also visits Matthiessen. That is a mistake. I spent most of my time at Starved Rock and only had a couple of hours left for Matthiessen, and I am still annoyed with myself for not planning it the other way around.
The main attraction is Lake Falls, which drops into a canyon in the middle of the park. To reach it you walk down a set of wooden stairs from the parking area, and by the time you get to the bottom you are standing in a small canyon with a waterfall in front of you, sandstone walls on either side, and almost no crowd. It is, to me, the most beautiful waterfall in Illinois. It is not the biggest, it is not the loudest, but the combination of the canyon, the water, and the quiet is hard to match anywhere else in the state.
The trails from Lake Falls extend deeper into the park, following the stream through the upper and lower dells. You can spend an hour here or half a day, depending on how far you want to go. The full loop is not long, and the elevation is manageable, but the terrain gets slippery after rain, so decent shoes matter.
5. Pere Marquette State Park
The last stop on the list is also the farthest south. Pere Marquette sits at the confluence of the Illinois and Mississippi Rivers, just north of Alton, and it is the largest state park in Illinois. If you are driving the Great River Road, you will pass right by it.
I stopped here in the afternoon and saw a bald eagle for the first time in my life. It came out of the trees along the river, flew low over the water for about thirty seconds, and disappeared into the bluffs on the other side. I stood there for another ten minutes waiting to see if it would come back, and it did not, but that one image is what I still think about when someone mentions Pere Marquette.
INSIDER TIP: On your way from Pere Marquette to Alton, one of the coolest activities I did was the ATV tour at the Aerie’s Resort in Grafton, Illinois. This is one of the few opportunities you have to go off-road and embrace the adventure. They also have a pretty nice view from the top and their Alpine Coaster is a must in the region.
The park has miles of hiking trails climbing up to overlooks above the river, and if you have a full day, that is what you should do. Park your car at the entry, pack water and lunch, and hike the loops up to McAdams Peak and back down through the lower trails. My time was limited, and I made the mistake most road trippers make. I drove from highlight to highlight instead of walking between them. If I do it again, I stay for a full day.
INSIDER TIP: Come for the eagles in January or February if that is your thing. Come for the hiking in May or October if it is not. The rest of the year works, but those are the windows where the park is at its best.
Illinois is not going to sell itself as a nature destination. But that’s fine. What it offers is quieter than that. Places that fit naturally into a longer trip along the Great River Road or Route 66. Trails where you might not see another person for an hour. A goat that walks you through a hillside. A waterfall in a small canyon that almost nobody outside the state has heard of. A bald eagle over the Mississippi on a warm afternoon.
