Every summer we get the same question from guests loading into the van. It is hot, the drive is long, and someone always asks if we are stopping anywhere to cool off. It is a fair question! Yellowstone is full of rivers, lakes, and steaming hot springs, so it seems like there should be swimming holes around every corner. The truth is a little more complicated, and honestly a little more interesting, than most visitors expect.
Here in West Yellowstone, we always tell guests that Yellowstone is not really a swimming destination, at least not in the traditional sense. Between scalding hot springs and rivers fed by snowmelt, the park keeps a tight leash on where you are allowed to get in the water. So if you are wondering where you can swim in Yellowstone National Park, here is what we tell people before they even ask.
Why Swimming is So Limited in Yellowstone
Before we get into specific spots, it helps to understand why Yellowstone is not exactly known for its beaches. This park sits on top of one of the largest volcanic systems in the world, which means the water here runs to extremes. Hot springs can reach boiling temperatures, while lakes and rivers fed by mountain snowmelt stay dangerously cold well into summer. Because of that, soaking in hot springs anywhere in the park is against the rules, both for your own safety and to protect these fragile thermal features.
On top of the temperature issue, most of Yellowstone's rivers move fast and carry strong currents, especially early in the season. So while the park does allow swimming in a couple of designated spots, it is a much shorter list than most visitors assume.
Photo sourced from Yellowstone National Park Service
Firehole River Swimming Area
The Firehole River swimming area is the most well known legal swimming spot in the entire park, and it is the one we point almost everyone toward. Located along Firehole Canyon Drive, a short detour south of Madison Junction, this stretch of river runs through a dramatic little canyon and opens up into a calm swimming hole warmed slightly by nearby thermal activity.
The water here is noticeably warmer than most of Yellowstone's rivers thanks to that thermal influence, though it is still cool enough to feel refreshing on a hot afternoon. There is a sandy beach area and a staircase leading down to the water, so it is fairly easy to access for most visitors. Just know that the Firehole River swimming area usually does not open until mid summer, once the spring runoff has calmed down, so always check current conditions before building a whole afternoon around it.
Photo sourced from Yellowstone National Park Service
Boiling River: Permanently Closed
Boiling River, located between Mammoth and Gardiner near the north entrance, is the other big swimming area in Yellowstone that visitors ask about. This was once one of the most popular areas for taking a dip within Yellowstone National Park; however, the historic Yellowstone flooding of 2022 completely changed the river’s landscape, permanently closing the area for swimming.
Is it Legal to Swim in Yellowstone?
This is where a lot of visitors get surprised. Is it legal to swim in Yellowstone outside of these designated spots? Technically in most places, yes, since the park does not ban swimming everywhere. But that does not mean it is a good idea. Yellowstone Lake, for example, sits at a chilly average temperature year round, cold enough that hypothermia can set in within minutes. There are no lifeguards anywhere in the park, at any of these spots, including the official swimming areas, so anyone getting in the water is doing so entirely at their own risk.
We tell our guests the same thing every time. Stick to the designated areas, respect posted closures, and never assume a calm looking river or a pretty blue hot spring is safe just because it looks inviting. Yellowstone's thermal waters can also carry organisms that cause illness, so keeping your head above water in these areas matters more than people realize.
What About Yellowstone Lake and the Other Rivers?
We get asked about this constantly, especially by families traveling with kids on hot July afternoons. Yellowstone Lake itself is not a swimming destination. The water stays cold enough year round that even a short dip carries real risk, and there are no designated swimming beaches along its shoreline. It is a fantastic spot for boating, fishing, and taking in the view, just not for getting in the water.
Most of the park's other rivers fall into a similar category. Fast currents, cold snowmelt, and rocky bottoms make casual swimming risky outside of the two spots we mentioned above. If a real swim is high on your list for this trip, we usually point people toward Hebgen Lake just outside West Yellowstone, which warms up nicely by midsummer and has spots for paddleboards and kayaks too.
Cooling Off the Easy Way, With a Guide
Here is the honest truth. Most of our guests do not end up needing a swimming hole, because a day in the van with the windows down and a knowledgeable guide pointing out geysers, waterfalls, and wildlife tends to fly by. Our guides know exactly when the Firehole River swimming area typically opens each season and can work a stop into your day if the timing lines up.
Our private Yellowstone tours depart daily from Big Sky, West Yellowstone, and Bozeman, and every tour is fully customizable. If you want extra time at a swimming spot, more wildlife watching, or a slower pace through the geyser basins, just let your guide know and we will build the day around it. We also run Lower Loop and Upper Loop tours if you are trying to decide which side of the park fits your trip best.
For visitors staying on the east side of the park, our parent company CoveredGround Tours runs guided Yellowstone tours from Cody, Wyoming, so wherever you are staying, there is a good chance we can get you out into the park with a local guide.
Yellowstone is not the place to plan a beach day, but that is honestly part of what makes it so special. This park protects some genuinely wild and untouched water, and the couple of spots where you can safely get in are worth the extra planning it takes to reach them. If you want help figuring out the best time to visit the Firehole River swimming area, or you are just ready to book a day exploring the park with one of our guides, reach out through our contact page and we will get your trip sorted out.
FAQs on Swimming in Yellowstone National Park
Where can you swim in Yellowstone National Park?
The Firehole River Swim Area is the only designated swimming spot in the park. It’s on Firehole Canyon Drive, about two miles south of Madison Junction. Boiling River, which used to be the other popular option, has been closed since the 2022 floods. Most other lakes and rivers in the park are too cold or fast-moving for safe swimming.
When does the Firehole River Swim Area open?
It usually opens in mid-summer, once spring runoff calms down. In years with heavy snowpack, it can stay closed all season, as it did in 2025. Always check the park’s current conditions before you plan a day around it.
Is Boiling River open for swimming?
No. The 2022 Yellowstone flood changed the river so much that swimming at Boiling River is no longer possible.
Can you swim in Yellowstone’s hot springs?
No. Soaking in hot springs is prohibited throughout the park. Many of them are near boiling, and the thermal features are fragile.
What are the rules at the Firehole River Swim Area?
Swimming is allowed only during designated hours, and the area is closed at night. Food, drinks, and containers aren’t permitted. Tubes, rafts, and pool floats are prohibited, and so is jumping from the cliffs. There are no lifeguards, so everyone swims at their own risk.
Can Yellowstone tours stop at a swimming spot?
Yes! Our private Yellowstone tours from Big Sky, West Yellowstone, and Bozeman are fully customizable. If the Firehole River Swim Area is open, your guide can build a stop into your day. Bring a swimsuit and towel, and we’ll fit the stop around the geysers and wildlife.