The Best Outdoor Activities in St. Louis: Parks, Trails & Day Trips
Revised July 17, 2026
What are the best outdoor things to do in St. Louis?
The best outdoor activities in St. Louis range from easy strolls to real hikes: Forest Park, the Gateway Arch grounds, the Missouri Botanical Garden, and Tower Grove Park for an easy day; the free Saint Louis Zoo and Grant’s Farm for families; and Castlewood State Park, Cliff Cave Park, and the Katy Trail when you want a real hike or bike ride. Many are free.
Keep reading ↓Picture a bright St. Louis Saturday with nothing on the calendar. Maybe you’re a family looking to wear the kids out, a couple after a cheap and pretty date, or a transplant who keeps hearing the metro has more green space than you’d expect. The good news: St. Louis is quietly one of the best outdoor cities in the Midwest, and a huge amount of it is free.
From a park bigger than Central Park to a 240-mile bike trail to genuine bluff hikes twenty minutes from downtown, here’s a local’s guide to the best outdoor activities in St. Louis — sorted by the kind of day you’re after, with what’s free, what’s worth the drive, and what to know before you go.
St. Louis Outdoors at a Glance
| Spot | Best for | Cost |
|---|---|---|
| Forest Park | Walking, biking, free museums | Free |
| Saint Louis Zoo | Families | Free admission |
| Katy Trail | Biking & long walks | Free |
| Castlewood State Park | Real hiking & bluff views | Free |
| Grant’s Farm | Animals with little kids | Free (paid parking) |
| Cahokia Mounds | History day trip | Free |
Easy Does It: Strolls, Gardens, and Icons
Start with the crown jewel. Forest Park is about 1,300 acres — larger than New York’s Central Park — and it’s the beating heart of outdoor St. Louis, with paved paths for walking and biking, boating on the Grand Basin, and four free attractions (the Zoo, the Saint Louis Art Museum, the Saint Louis Science Center, and the Missouri History Museum) scattered across it. You could spend a dozen weekends here and not repeat yourself.
Downtown, the grounds of Gateway Arch National Park are free to roam, with riverside paths beneath the country’s tallest monument (the tram to the top is ticketed, the walk around is not). And in the city’s south side, Tower Grove Park — a 289-acre Victorian gem next to the Missouri Botanical Garden — is a favorite for a farmers-market morning or a shady picnic. For manicured beauty, the Missouri Botanical Garden (paid admission) is one of the oldest botanical gardens in the country, and Laumeier Sculpture Park pairs 105 free acres with more than 60 large outdoor sculptures — it’s celebrating its 50th year in 2026.
Bring the Kids: Animals and Wide-Open Space
Few cities make family days this affordable. The Saint Louis Zoo is consistently ranked among the country’s best — and general admission is free. Grant’s Farm, the Busch family’s historic animal preserve, is also free to enter (you just pay for parking), with a tram ride past roaming deer and bison, a goat corral, and the famous Clydesdales. For a quieter outing, Suson Park in south county has a small working farm with animals kids can meet, and Creve Coeur Lake Memorial Park — the largest lake in St. Louis County — offers flat trails, sailing and rowing, and plenty of room to run.
Real Adventure: Bluffs, Trails, and a River
Think St. Louis is all flat? The bluffs will fix that. Castlewood State Park, about twenty minutes west, is the local hiker’s favorite, with switchback trails up to dramatic overlooks above the Meramec River. Cliff Cave Park in south county offers rugged riverbluff trails (the cave itself is usually closed, and trails occasionally close after flooding, so check the county’s status first). For a woodsy, wildflower-filled ramble, Shaw Nature Reserve in Gray Summit protects 2,400+ acres of Ozark-border landscape with miles of trails.
On Two Wheels: The Trails
St. Louis is a genuinely great trail city. The Katy Trail is the longest developed rails-to-trails path in the country — about 240 crushed-limestone miles running from near Kansas City to the St. Louis suburbs — and the stretch through the Missouri River wine country near Augusta is a bucket-list ride. Closer in, the Great Rivers Greenway network links more than 140 miles of paved greenways across the region, and the Old Chain of Rocks Bridge carries walkers and cyclists across the Mississippi on a historic Route 66 span with skyline views. Rent a bike or lace up your shoes; the mileage is there. And you don’t have to be a serious cyclist to enjoy it — the crushed-limestone Katy Trail and the paved greenways are flat, shaded, and beginner-friendly, so a casual family ride is just as doable as a long training day. Several outfitters near the trails rent bikes by the hour if you don’t have your own.
Want to Get Out of Town? Easy Day Trips
When you’ve got a full day, a few destinations are worth the drive. Just across the river in Illinois, Cahokia Mounds is a UNESCO World Heritage Site — the largest pre-Columbian settlement north of Mexico, where you can climb Monks Mound, the biggest prehistoric earthwork in the Americas. (Note: the site’s Interpretive Center is currently closed for renovation, but the grounds, mounds, and trails remain open.) South of the city, Elephant Rocks State Park lets you scramble over billion-year-old granite boulders the size of small houses. And to the west, the Augusta wine country and Klondike Park pair Katy Trail access with river-valley views and a tasting or two.
What to Do Outside Today — and This Season
The metro rewards every season. In spring and fall, hit the bluff trails at Castlewood or a long stretch of the Katy Trail when the weather’s perfect. In summer, go early for the Zoo or a paddle at Creve Coeur Lake before the heat, and save shady Tower Grove or the Botanical Garden for the afternoon. In winter, Forest Park’s paths and the free museums keep you moving even on gray days. There’s no wrong season to get outside here — only different versions of a good day. Fall may be the secret best season: the bluff trails light up with color, the Katy Trail is perfect, and the summer humidity has finally broken. Spring brings wildflowers to Shaw Nature Reserve and the Botanical Garden into full bloom. Even a mild winter day is worth a walk around Forest Park or a climb up Monks Mound with the crowds gone.
More Water, Lakes, and Greenways
St. Louis sits at the meeting of two great rivers, and there’s more water play than newcomers expect. Creve Coeur Lake is the county’s largest, with sailing, rowing, kayak rentals, and a flat paved loop that connects into the greenway system. The Great Rivers Greenway keeps adding paved miles that link parks, neighborhoods, and the riverfront — you can ride for hours without touching a road. And for a only-in-St.-Louis photo, the Old Chain of Rocks Bridge lets you walk or bike a mile across the Mississippi on a retired Route 66 span. Add in fishing lakes at county parks like Suson and you’ve got a whole warm-weather category most visitors never discover.
Make a Full Day of It
The nicest thing about outdoor St. Louis is how easily you can stack a day. A classic combo: a morning walk or bike through Forest Park, a picnic by the Grand Basin, then the free Art Museum up on Art Hill when you need a break from the sun. Another: hike the bluffs at Castlewood in the morning, then cool off with lunch in nearby Kirkwood or a float on the Meramec. Out west, ride a stretch of the Katy Trail from Augusta and reward yourself with a winery stop. Because so many of these spots are free or nearly free, you can build a full, memorable day for the price of gas and a sandwich.
Which Outdoor Day Is Right for You?
With little kids: the free Zoo or Grant’s Farm, then a run around Forest Park. A cheap date: Laumeier’s sculptures or a sunset walk at the Arch. Real hikers: Castlewood’s bluffs or Shaw Nature Reserve. Cyclists: the Katy Trail or the Great Rivers Greenway. A classic first-visit day: the Arch grounds plus Forest Park. Getting out of town: Cahokia Mounds or Elephant Rocks. Whatever your speed, there’s a version of the St. Louis outdoors built for it. And the best part bears repeating: so much of it is free. In a lot of cities, a full day outdoors means admission fees and parking charges stacking up; here, you can hike a bluff, tour a garden, meet the animals, and watch a sunset from under the Arch without spending much more than gas money.
Find great local spots (and a note for the owners)
A great outdoor day pairs perfectly with a nearby coffee stop, food truck, or patio — and that’s what a local directory is for. You can search St Louis Near Me Directory to find spots near any of these parks and trails before you head out.
And if you run a business anywhere in the St. Louis area — a bike shop, a cafe, an outfitter — getting found by locals and visitors is the whole game. Listing your business is how people searching for their next day out end up finding you.
More St. Louis things-to-do guides
- Beyond the Arch: unique things to do in St. Louis
- Indoor attractions for a rainy day
- Hotels near the Zoo & Forest Park
Prefer a rod and reel? Don’t miss our guide to the best fishing spots in St. Louis.
Frequently Asked Questions
What to do outside today in St. Louis?
Head to Forest Park for a walk or bike ride, catch the free Saint Louis Zoo, or hike the bluffs at Castlewood State Park. In summer, go early before the heat; in fall, the bluff trails and Katy Trail are perfect. Winter still rewards a Forest Park stroll.
What are 5 outdoor activities?
Five great St. Louis outdoor activities: walk or bike Forest Park, visit the free Saint Louis Zoo, ride the Katy Trail, hike the bluffs at Castlewood State Park, and meet the animals at Grant’s Farm. Nearly all are free or nearly free, so you can stack several in one day.
What is the most popular outdoor activity?
Walking and biking through Forest Park is arguably the most popular outdoor activity in St. Louis — the roughly 1,300-acre park is the beating heart of the city’s outdoors, larger than Central Park, with paved paths, boating on the Grand Basin, and four free attractions. Best of all, it’s free.
What to do outside of St. Louis?
For day trips outside the city, cross into Illinois for Cahokia Mounds, a UNESCO World Heritage Site where you can climb Monks Mound. Head south to Elephant Rocks State Park to scramble over giant granite boulders, or west to the Augusta wine country and Klondike Park along the Katy Trail.
What outdoor activities in St. Louis are free?
A lot of them. Forest Park, Tower Grove Park, the Saint Louis Zoo (general admission), the Gateway Arch grounds, Laumeier Sculpture Park, the Katy Trail, and the Great Rivers Greenway are all free. Grant’s Farm is free to enter with paid parking, and Cahokia Mounds’ grounds are free. The Missouri Botanical Garden and Shaw Nature Reserve charge admission.
How long is the Katy Trail?
The Katy Trail is about 240 miles, running across Missouri from near Kansas City to the St. Louis suburbs — the longest developed rails-to-trails path in the United States. The scenic stretch through the Missouri River wine country near Augusta is one of the most popular sections for area cyclists.
Where can you hike near St. Louis?
Castlewood State Park (about 20 minutes west) is the local favorite, with bluff-top overlooks above the Meramec River. Cliff Cave Park offers rugged river-bluff trails, Shaw Nature Reserve has miles of Ozark-border trails, and for a day trip, Elephant Rocks State Park lets you scramble over giant granite boulders. Forest Park and the greenways are great for easier, flatter walking.
What are good outdoor activities in St. Louis with kids?
The free Saint Louis Zoo is the classic choice, along with Grant’s Farm (free to enter, paid parking) for its tram ride past deer, bison, and the Clydesdales. Suson Park has a small working farm kids can visit, and Creve Coeur Lake offers flat trails and plenty of room to run.
Written by a dedicated team of St. Louis locals who live, work, and play right here in the St. Louis metro. Founder Lane Forman and team are committed to building the region’s most trusted directory by verifying listings and connecting local businesses with loyal customers across Missouri and Illinois.