We Hiked to Grinnell Glacier in Glacier National Park. Want a TOUR?

Did you know hiking to Grinnell Glacier is over 11 miles long but that’s not the hardest part. What's worse is that you have to hike up an elevation higher than climbing any skyscraper in Chicago and hike back down. Come on a journey with us for 10 questions you should ask to learn whether you’ll REGRET hiking Grinnell Glacier. Let’s get started! To watch the video version of this blog click here or continue reading below.

One of the first questions people ask is 

How Long Does it Take to Hike Grinnell Glacier Trail?

Hiking the Grinnell Glacier Trail typically takes between 7 to 8 hours round trip, though actual time can vary based on fitness level, weather conditions, and how long you spend at the glacier. For experienced hikers who maintain a brisk pace with minimal stops, the trek may take closer to 6.5 to 7 hours, while those who prefer a more leisurely pace, take frequent breaks, or spend extra time admiring the views at the glacier may take closer to 8.5 hours or more.  Have you ever walked a full day?

Most hikers spend about 3.5 to 4 hours reaching the glacier, as the ascent is gradual but continuous. The final stretch of the trail can be particularly challenging, which we’ll show later as it includes some narrow sections with steep drop-offs and potential lingering snowfields, especially earlier in the season. Once at the top, many people spend anywhere from 30 minutes to an hour exploring the area, taking photos, enjoying lunch, or even dipping their feet in the frigid glacial waters.

The descent usually takes 2.5 to 3.5 hours, as the return trip is all downhill and less physically demanding. But, many hikers find the descent to be just as slow as the way up due to the rocky terrain, two-way traffic, and potential for fatigue after the long climb.

We’ll talk about how hard it is to hike Grinnell Glacier Trail and whether you should bring kids along later but 

What Gear Should You Take With You to Hike Grinnell Glacier Trail?  

Hiking with the right gear for the Grinnell Glacier Trail is essential to ensure a safe, comfortable, and enjoyable hike. Hikers should be well-prepared for varying terrain and unpredictable mountain weather. Sturdy, well-broken-in hiking shoes or boots are a must, as the trail includes rocky and uneven sections.  Trekking poles are highly recommended to reduce strain on the knees and provide stability, especially on the descent.  We also hiked with a rescue rope. Here are examples of what we hiked with:

Teton Sports Hydration Pack Video Review: https://youtu.be/KEBrYwp8RQk

Amazon Link: 2021 model https://amzn.to/3SnKcGR

2022 model https://amzn.to/3vIogMZ

Camelbak Mini M.U.L.E hydration backpack Video Review for younger hikers: https://youtu.be/WbRgZr6C20g

Amazon Link: https://amzn.to/3Zpj91p

Merrell Moab II Men's Hiking Shoes: https://amzn.to/3Ardw8k

The First Aid Kit we carry: https://amzn.to/3Lcvu2h

Trekking Poles: https://amzn.to/3DHj54L

Tactical Flashlights: https://amzn.to/3QLY25T

Compass: https://amzn.to/3GahGU5

Rescue Rope: https://amzn.to/3ZTLnTW

Every good hike needs a dad joke! Why did the hiker bring a pencil to the mountains? In case he needed to draw a path!

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Hydration is critical on this strenuous trail, so hikers should carry at least 2-3 liters of water per person. A hydration day pack is a great option for easy sipping while on the move.  Do you have back issues?  If so it may be difficult to carry a day back with 10-20 pounds of gear.   

Weather conditions in Glacier National Park can change rapidly, so layering is key. A lightweight rain jacket is essential in case of sudden showers, and an insulating layer can help in the cooler temperatures near the glacier. Sun protection is also crucial, as much of the trail is exposed. Hikers should bring sunglasses, sunscreen, a hat, and lightweight, breathable long sleeves to protect against UV rays. Even in summer, the wind can be chilly, so having a hoodie or beanie and lightweight gloves may come in handy.  

We’ll continue later with what to pack for hiking Grinnell Glacier but right now let’s answer the question:

What Wildlife Can You See on the Grinnell Glacier Trail?

The Grinnell Glacier Trail offers some of the best opportunities for wildlife viewing in Glacier National Park, as it passes through a variety of habitats that support a diverse range of animals. Among the most well-known—and potentially dangerous—wildlife sightings are grizzly bears and black bears. The Many Glacier area, where the trail is located, is prime grizzly habitat, and hikers spot these magnificent animals foraging in meadows or walking along the slopes. Black bears are also commonly seen, though they tend to be smaller and more solitary than their grizzly counterparts. Because of the likelihood of encountering bears, carrying bear spray is essential, and hikers should always make noise, travel in groups, and follow all park guidelines for bear safety.

Beyond bears, the Grinnell Glacier Trail is home to more likely wildlife encounters. Bighorn sheep are often seen along the rocky ridges, especially higher up near the glacier. Their ability to navigate steep, rugged terrain makes them an impressive sight. Mountain goats, with their thick white coats, are also a common sight along the trail, particularly near exposed cliffs and alpine areas. We saw Mountain Goats high up above the glacier on a patch of grassland near the mountain peaks.  These sure-footed climbers are well-adapted to the high elevations of Glacier National Park and are often spotted resting on rocky ledges or grazing in alpine meadows.  Are you afraid of large animals and are you comfortable discharging bear spray?  The answer to this question should be part of your decision to hike to Grinnell Glacier.  

In addition to large mammals, moose are sometimes seen near Lake Josephine or Swiftcurrent Lake, where they wade into the water to feed on aquatic plants. Though less common than bears or goats, a moose sighting is always a special experience. Elk may also be spotted in the area, particularly in the  morning or late evening hours.  We saw moose at a distance far below the trail next to Grinnell Lake. 

The trail is also home to a variety of smaller animals and birds. Marmots and pikas, two of the park’s most charming alpine creatures, are frequently seen among the rocks along the trail. Marmots are larger, groundhog-like rodents known for their loud whistles, while pikas are tiny, mouse-like mammals that dart between the boulders. 

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What Items Should You Pack For Hiking Grinnell Glacier Trail?  

Since the hike requires sustained energy, bringing high-calorie snacks like trail mix, protein bars, nuts, and fruit is advisable. Many hikers enjoy having lunch at the glacier, so packing a hearty sandwich or something satisfying can make for a rewarding break at the turnaround point. But, know that there are pit toilets there, too.  So, feel free to take electrolytes or a sports drink to help replace lost minerals and prevent dehydration, especially on hot days.

A small first aid kit with blister treatment, bandages, antiseptic wipes, and pain relievers is another essential safety item. Your brood may trip or stumble and a band aid may be the difference between turning around early or a happy adventure!  Since hikes can sometimes take longer than expected, carrying a headlamp or flashlight with extra batteries ensures you won’t get caught in the dark especially if you start your hike after lunch.  

Additional items that can enhance the hike include a camera or smartphone to capture the stunning scenery. But, consider binoculars, too.  We saw moose at a distance and didn’t have optics to get a good look.  Also carry a trail map to understand your location on the trail.   

For kids and adults alike pack a sweet treat like gummy worms to motivate hikers when the trail gets long.  But, 

Can Kids Hike the Grinnell Glacier Trail?

Whether kids can hike the Grinnell Glacier Trail depends largely on their age, endurance, experience, health and willingness to take on a challenging hike. This trail is considered strenuous, spanning over 11 miles round trip with 1,600 feet of elevation gain, making it a tough trek even for many adults.

For older children (10 and up) who have some hiking experience and are used to longer trails with elevation gain, the hike can be doable with proper breaks, hydration, and motivation. Our brood just got out of their soccer season and my daughter was almost 12 when we went to Glacier.  We’ve been hiking for 7 years so they know what to expect.  But even these 10 mile trails in Glacier were kicking their butts and ours, too.  But, kids who enjoy outdoor adventures and have hiked at least 6 to 8 miles on previous trails may find the challenge rewarding, especially with the promise of seeing a glacier and wildlife. We would discourage kids under 10 from attempting this hike.  We saw families with small children and it looked difficult and dangerous.  Carrying a child in your arms, piggyback, in a carrier, or on your shoulders is dangerous on Grinnell Glacier Trail.  On our hike we experienced strong winds more than on any other hike.  We thought we would be blown off the trail and many times literally hit the deck to get low to the trail until gusts subsided.  There are bears, too but falling off the trail is a real danger on the second half of the trail.  Especially, if you have little ones that like to wander.  We’ve found hikes 5-6 miles or shorter to be best for little explorers.   

Now for a couple of quick questions and later we’ll talk about shortening the hike by taking the Many Glacier Boat Shuttle.  

Can You Swim in Grinnell Glacier?  

Although swimming in Grinnell Glacier is possible, it is extremely cold due to the glacial meltwater. Most people who attempt it can only stay in for a few seconds before the frigid temperatures become overwhelming. If you’re daring enough, you can take a quick dip for the thrill, but be prepared for an ice-cold shock!

How do You Get to Grinnell Glacier Trail?

To reach Grinnell Glacier Trail, you need to go to the Many Glacier area of Glacier National Park. From St Mary’s Montana where most people stay it is a 30 minute drive to Many Glacier Hotel.  The trailhead starts near the Many Glacier Hotel or the Grinnell Glacier Picnic Area. Parking is limited, so arriving early is highly recommended.

How Hard is it to Hike to Grinnell Glacier?  

The trail covers over 11 miles round trip and as we said it has an elevation gain of about 1,600 feet, which means a steady uphill climb for much of the hike.  The trail starts at about 5,000 ft and ascends from there making altitude a factor.  For perspective the hike at 1,600 vertical feet is a climb higher than any skyscraper in Chicago.  The trail is rated difficult and should be considered for experienced hikers and those in good health.  The hike just continues to climb once you get past lake Josephine and doesn’t stop.  When you think you are near the top the climb continues over many more ridges and you’ll wonder if it ever ends.  But, get your rest at the glacier because the return hike can be more difficult.  We found it particularly hard to travel the single lane trail with two way traffic.  As hikers are coming up they are to receive the right of way which can slow your descent when all you want to do is get back to the hotel and a comfortable chair.    With the trail being so difficult you may be asking

Should I Take the Boat to Shorten the Hike to Grinnell Glacier?

If you’re looking to shorten the Grinnell Glacier Trail, taking the Many Glacier boat shuttle across Swiftcurrent Lake and Lake Josephine might be considered a great option. The boat ride reduces the round-trip hiking distance by about 4 miles, bringing the total hike down to 7.6 miles instead of 11.5 miles. While this still makes for a challenging trek, it can make the journey more manageable for those who want to conserve energy for the steeper portions of the trail.

The boat saves effort by eliminating a mostly flat but lengthy section of the hike that winds through the Many Glacier Valley. However, it does not bypass the most difficult part of the hike—the steady uphill climb leading to Grinnell Glacier and the first boat doesn’t leave until 8am.  So, you also risk two way traffic on the trail which causes delays and tiring stop and go hiking.  If you take the boat, you will disembark at the far end of Lake Josephine.  

One important factor to consider is boat reservations. The Many Glacier boat tours are extremely popular, especially in peak summer months, and often sell out in advance. If you plan to take the boat, it’s highly recommended that you book your tickets ahead of time to secure a spot. Walk-up availability can be limited, and missing the boat could force you to hike the full trail. Additionally, you’ll need to factor in the boat schedule—if you miss the last return boat  at 5pm you’ll have to hike back the full way.  But remember this hike can be 7-8 hours.  So, if you get the 10am boat or later departure you might not make it back by 5pm to get the return boat to the hotel.

For hikers who want a mix of both experiences, one option is to take the boat in one direction—either on the way up to save energy for the climb or on the way down to reduce the strain on your knees. Some visitors prefer to hike out in the morning and take the boat back in the afternoon, while others take the boat first to get an early start on the ascent. 

Ultimately, taking the boat isn’t necessary for completing the Grinnell Glacier Trail, but it’s a great option for those wanting a shorter hike while still experiencing the stunning scenery. We had boat tickets but cancelled at the last minute and were thankful we did.   We ended up hiking earlier, enjoying reduced traffic, and enjoyed the hike around the lakes.  But, another reason is that we didn’t want to be rushed with the 5pm deadline for the last shuttle.  

Will you take the boat shuttle?  Join the conversation by leaving a comment.  

Why Is the Grinnell Glacier Trail So Special?

The Grinnell Glacier Trail is widely regarded as one of the most iconic and breathtaking hikes in Glacier National Park, offering an unforgettable journey through some of the park’s most stunning landscapes. What makes this trail so special is the diverse and dramatic scenery that unfolds along the route, making every step a visual masterpiece. From the very start, hikers are treated to panoramic views of Swiftcurrent Lake and Lake Josephine, two strikingly blue glacial lakes that set the stage for the adventure ahead. As the trail gains elevation, it winds through lush alpine meadows filled with wildflowers, where vibrant colors contrast beautifully with the rugged mountain backdrop.  We couldn’t believe all of the wild flowers that blanket the landscape in a rainbow of colors and no picture can show it’s complete beauty.  

One of the most awe-inspiring features of the hike is the cascading waterfalls that tumble down from the towering cliffs above. These natural water features, fed by glacial melt, create a truly magical atmosphere, especially in the early season when they are at their fullest. But, what is even more fun is hiking through a waterfall that splashes over the trail.  So, consider whether you want to hike through the waterfall we showed earlier because it was scary for many hikers on the trail.  As you climb higher, the views become even more dramatic, revealing a sweeping vista of the Grinnell Valley, with its turquoise lakes, towering peaks, and suspended glaciers.

Of course, the ultimate highlight of the hike is Grinnell Glacier itself. Standing at the viewpoint near the glacier, hikers are rewarded with an up-close look at one of the last remaining active glaciers in the park. The shimmering blue ice, floating icebergs, and glacial water beneath the glacier create a surreal and humbling scene, serving as a powerful reminder of the beauty that makes Glacier National Park special. 

To continue planning your trip to Glacier National Park read this post next.