Grinnell Lake
Glacial rock flour colors Grinnell Lake turquoise; boat shuttle shortens the hike.
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An idea to explore—not a must-do.
The full road crossing depends on seasonal access—even in summer.
An idea to explore—not a must-do.
An idea to explore—not a must-do.
Start early to beat parking crowds.
Use the shuttle to slice miles off the hike.
Alpenglow on peaks at sunrise and sunset
Bear spray required; stay 100 yards from bears and wolves, 25 yards from other wildlife; very cold meltwater; wet rocks; mosquitoes in warm months; layered clo…
Natural Attraction
YOUR VISIT, YOUR WAY
What would you love to do here?
Make Grinnell Lake the destination: choose a longer independent hike or shorten the walking with boats across Swiftcurrent Lake and Lake Josephine. The boats do not reach Grinnell Lake itself; the boat-assisted choice still includes a steep transfer and a self-guided hike. Take care near water and steep edges, supervise children, keep your distance from wildlife, and carry bear spray and weather-ready layers. Check current trail access and the return-boat timetable before setting out.
Showing the complete guide. Access and safety stay visible.
Hike all the way to Grinnell Lake
Walk 3.4 miles one way from Many Glacier Hotel or the Grinnell Glacier Trailhead to Grinnell Lake; returning the same way makes 6.8 miles round trip. This keeps your visit independent of boat departures but makes the walk a larger commitment in your day.
With children
Supervise children near water and drop-offs, maintain wildlife distances, and prepare for changing mountain conditions.
Combine the boats with a hike
Cross Swiftcurrent Lake and Lake Josephine, with a mandatory 0.2-mile steep hill transfer between boats, then hike independently to Grinnell Lake. Check the last return departure; boarding is first-come and waits are possible. This is not a boat-only visit or a guided hike.
With children
Plan for the steep hill transfer, supervise children near water and drop-offs, and prepare for possible waits for a return boat.
Planning sources · checked September 7, 2026
Bright turquoise water sits in a shallow basin framed by Mount Gould and the Garden Wall. Beaches along the shore offer direct viewing of the lake’s surface, with color intensifying at dawn. This is a glacial tarn formed by Pleistocene ice, colored by rock flour while high peaks were sculpted by uplift and carving.
Glacial lake bordered by mountains, accessed by hiking trails & notable for bright turquoise water.
MAKE ROOM FOR A MEMORABLE STOP
Is this stop worth your time?
Why go
- What Youll See
- Beaches along the Grinnell Lake shore; turquoise water; surrounding peaks; trailheads and boat docks; possible wildlife in wetlands nearby.
- Unique Characteristics
- Turquoise color from glacial flour; Belt Supergroup rocks exposed in a classic glacial cirque; rapid shift in scenery between Swiftcurrent and Grinnell Lake corridors.
When to go
- Best Visit Times
- Early morning or late afternoon to avoid crowds and mid-day glare
- Peak Fill Times
- 7:00 AM and earlier during peak season
Getting there and doing it
- How To Get There
- Park at the Many Glacier Hotel/Grinnell Glacier Trailhead. If using the boat shuttle, board Swiftcurrent Lake/Lake Josephine to shorten the hike, then hike to Grinnell Lake via established trails.
- Parking Availability
- Limited; fills by 7:00 AM in peak season; overflow parking along Many Glacier Road; occasional temporary shuttle service.
Explore your choices Choose your visit options.
Getting there & parking
- Distance From Entrance
- From Many Glacier Hotel: 6.8–7.8 miles round-trip on foot (230–465 ft gain); with boat shuttle (one-way hike): ~5.8 miles; with round-trip boat: ~2.4 miles.
- Road Type
- Paved
- GPS Coordinates
- 48.76518, -113.70534
When to go
- Best Time To Visit
- Late June through September is when Grinnell Lake is typically snow-free and accessible. For photography, plan morning visits to catch light on the eastern cirque walls. Many Glacier Road runs from late May to late September.
- Sunrise Sunset Quality
- Alpenglow on peaks at sunrise and sunset
- Best Season
- June–September
- Busiest Season
- July–August
- Seasonal Access
- Late May–late September
- Road Opening Dates
- Late May–late September
- Snow Lingering
- Snow may linger into late spring; melts by early July
- Winter Access
- Limited; winter conditions restrict access; snowshoe routes possible where plowed
- Weather Patterns
- Cool mornings; potential afternoon thunderstorms; mosquitoes in warm months
- Wildflower Peak
- July–August
- Fall Colors Peak
- Late September–October
What you will experience
- Attraction Type
- Glacial Lake
- Main Features
- Glacial tarn, turquoise water, cirque setting, Mount Gould, Garden Wall, Mount Grinnell
- Photo Opportunities
- Dawn light on turquoise water; alpenglow on Garden Wall and surrounding peaks; reflections in still mornings.
- Photography Spots
- Grinnell Lake shore beaches; boat dock area; viewpoints along trail with Mount Gould and Garden Wall in frame
- Best Viewpoints
- Grinnell Lake shore beaches; viewpoints along the Grinnell Glacier Trail approach; near the boat dock for direct water views.
- Common Wildlife
- Moose, bears (grizzly and black), deer, bighorn sheep, mountain goats
- Best Wildlife Times
- Early morning and dusk
- Geological Formation Type
- Cirque Lake (Tarn)
- Scientific Interest
- Visible glacial silt coloring; Belt Supergroup bedrock; post-glacial uplift shaping the cirque
- Stargazing Quality
- Excellent dark-sky visibility away from light pollution
Facilities, fees & access
- Entry Fees
- Included with park entrance fee
- Permits Required
- No
- Restrooms Available
- Yes
- Restroom Type
- Pit toilets near the Lake Josephine boat dock
- Picnic Areas
- Yes
- Water Available
- Yes
- Cell Service
- Scarce
- Interpretive Signs
- No
- Accessibility
- Non-wheelchair-accessible trail; boat shuttle reduces distance; uneven terrain
- Accessibility Level
- Non-wheelchair-friendly; uneven terrain; boat shuttle reduces hiking distance; accessible viewing from Grinnell Lake shore.
- Nearby Services
- Many Glacier Hotel lodging; boat shuttle operations; pit toilets; potable water at trailhead picnic area
- Nearby Facilities
- Pit toilets near Lake Josephine dock; potable water at trailhead picnic area; limited on-site services
- Family Friendly Notes
- Trail is long; watch for wildlife; hold hands near water edges; guided access via shuttle can reduce effort for kids
Safety
Nearby
- Nearby Attractions
- Swiftcurrent Pass, Grinnell Glacier Trail, Iceberg Lake, Jackson Glacier Overlook
- Connecting Trails
- Grinnell Glacier Trail; link via Many Glacier Hotel; boat shuttle connections to Swiftcurrent/Josephine routes
- Trailheads Here
- Grinnell Glacier Trailhead; boat shuttle access points on Swiftcurrent Lake and Lake Josephine
Planning advice
- Insider Tips
- Start early to beat parking crowds.
- Use the shuttle to slice miles off the hike.
- Watch for rock-fall and keep distance from cliff edges.
- The water is cold—do not swim.
- Photograph from the shore during golden hour for best color.
- Tips Advice
- Look for rock flour on the water surface and blue-green hues in the morning light.
- Arrive before 7am in peak season to secure parking; overflow parking exists.
- Use the boat shuttle to Lake Josephine/Swiftcurrent Lake to reduce hiking distance.
- Carry bear spray, make noise in bear country, and keep a safe distance from wildlife.
- Stay on designated trails and watch for slippery rocks; dress in layers for changing weather.
More details
- Park Area
- Many Glacier
- Recent Updates
- Seasonal shuttle adjustments; parking overflow handling during peak season; road access windows May–Sept
- Elevation Feet
- 4944
- Visitor Center Present
- No
- Guided Tours Available
- No
- Lake Size
- 79.4 acres (32.1 ha)
- Fishing Nearby
- No
- Swimming Allowed
- No
- Boating Allowed
- No
- Climbing Areas
- No
- Review Summary
- Grinnell Lake sits in a high-alpine cirque with water tinted by glacial flour. Access is via the Grinnell Glacier Trail or a boat shuttle across Swiftcurrent Lake and Lake Josephine, followed by a hike to the lake. The primary viewing area lies along the approach trail, offering broad views of the lake and surrounding peaks. In peak season, crowds and limited parking around the Many Glacier area can be a constraint. The water color reflects glacial grinding, with fine sediment suspended in meltwater from ancient ice.
Location
Photos
Frequently asked questions
Do I really need to arrive before 7am to get parking?
Yes. Parking fills very early in peak season; overflow parking exists along Many Glacier Road, and a shuttle can help you bypass some of the distance.
Is it worth the 6–8 mile hike just to see Grinnell Lake?
Yes. The turquoise water, cirque setting, and views of Mount Gould and the Garden Wall are quintessential Glacier scenery; boat shuttle options allow a shorter, manageable route.
Can I bring my dog to the Grinnell Lake Trail?
No. Pets are not permitted on the Grinnell Glacier Trail and most backcountry trails; plan to left your dog at a permitted area or consider alternative trails where allowed.
Is the water actually blue, or is that just in photos?
The water is blue-green in real life. The color comes from rock flour ground by ancient glaciers; expect the hue to intensify with morning light.
Will I be able to access the lake if I don't like long hikes?
Yes, via boat shuttle to Lake Josephine and a shorter cross-lake hike; the round-trip option from Many Glacier Hotel to Grinnell Lake is longer, but the shuttle makes it more manageable.
More at Glacier National Park
Pyramid Peak
Granite peak sharpened by glacial ice; scrambling to Pyramid Peak from Pyramid Pass.
Grace Lake
Grace Lake: glacial cirque lake at 3,966 ft, reached via the Logging Lake Trail.
Rising Sun Picnic Area
A practical east-side pause where Glacier’s mountains meet the prairies.
Two Medicine Picnic Area
Two Medicine’s lake and peaks reward a future picnic; road access is closed as of September 9, 2026.
Monument Falls
215 ft waterfall fed by glacial meltwater; view from Avalanche Lake shore.
Lake McDonald
A west-side lakeshore pause: choose Apgar or Lake McDonald Lodge, then leave room for a separate walk or boat outing.
Sources
- wikipedia.org
- usgs.gov
- glacierguides.com
- enjoyyourparks.com
- hikingwalking.com
- noahlangphotography.com
- hikespeak.com
- alibaba.com
- youtube.com
- recreation.gov
- travelandleisure.com
- nps.gov
- opengeology.org
- macalester.edu
- Current time information in Glacier County, US.
- apple.com
- Google Reviews
- YourNPGuide Editorial
Editorial review: YourNPGuide Editorial Team. Information is compiled from official sources, verified traveler reviews, and editorial research; no firsthand visit is implied unless explicitly documented. Learn how YourNPGuide works.
Last updated December 2025. Report an issue.