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Whatcom County

Diablo Lake Trail

Moderate

5.0

(7)

72

hikers

Diablo Lake Trail

04:55

13.0km

490m

Hiking

Hike the moderate 8.1-mile Diablo Lake Trail in Ross Lake National Recreation Area, known for its turquoise waters and mountain views.

Last updated: February 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Stephen Mather Wilderness

Ross Lake National Recreation Area

Waypoints

A

Start point

Parking

Get Directions

1

99 m

Diablo Lake Trailhead and Ferry

Highlight • Trail

From here you can take the trail along the shore of Diablo Lake. If you're here at the right time you can take the ferry one way and hike the other, making for a nice day of walking and on the water.

Tip by

2

3.70 km

View of Diablo Lake

Highlight • Viewpoint

You'll be treated to a number of great views along the Diablo Lake Trail. Be sure to take the time to stop and enjoy the beautiful nature on display.

Tip by

3

6.47 km

Diablo Lake Ferry

Highlight • Rest Area

The ferry is offered during the summer months. It shuttles between Ross Lake Dam and Diablo Lake Pier. Ideal for walking the Diablo Lake Trail one way. Price in 2024 $10 per person, children under 5 travel free. First come first serve, payable in cash or credit card on board

Translated by Google •

Tip by

B

13.0 km

End point

Parking

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Way Types & Surfaces

Way Types

11.4 km

1.12 km

200 m

139 m

< 100 m

Surfaces

11.6 km

1.15 km

191 m

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Elevation

Elevation

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Today

Sunday 24 May

18°C

7°C

0 %

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Max wind speed: 10.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Where can I park for the Diablo Lake Trail?

The trailhead for the Diablo Lake Trail is conveniently located near the lake. You can find parking at the Diablo Lake Trailhead. During peak seasons, it's advisable to arrive early as parking can fill up.

Is the Diablo Lake Trail dog-friendly?

Yes, the trail is dog-friendly! It's located within the Ross Lake National Recreation Area, but not technically within the National Park boundaries, which allows dogs. Please ensure your dog is on a leash and you pack out any waste.

When is the best time to hike this trail?

The Diablo Lake Trail is often accessible as an early-season hike in the North Cascades, being snow-free when higher-elevation trails are not. The turquoise color of Diablo Lake is most vivid during spring and summer due due to increased glacial melt. For the unique ferry option, plan your visit between June and October.

Do I need a permit or pay an entrance fee for the Ross Lake National Recreation Area?

No, there are no entrance fees required for the Ross Lake National Recreation Area, which includes the Diablo Lake Trail. However, always check the official NPS website for any updated regulations or specific permits that might be required for backcountry camping or other activities if you plan to extend your trip beyond the day hike.

What is the terrain like on the Diablo Lake Trail?

The trail offers diverse terrain, starting through a peaceful old-growth forest with wood bridges over small streams. As you ascend, it transitions to include boulder fields and ridge lines. Be prepared for rocky sections and some semi-steep climbs. The path can be narrow in parts, and some sections have views down to Diablo Lake that might be intimidating for those with a fear of heights. Hiking boots are highly recommended.

What kind of views can I expect on the route?

You'll be treated to breathtaking views of Diablo Lake, famous for its vibrant turquoise color. The trail also offers impressive cascading waterfalls and sweeping vistas of surrounding peaks like Ross Lake, Colonial, Pyramid, Davis, and Jack Mountain. While much of the trail is forested, ridge portions provide expansive mountain views. You can also enjoy the View of Diablo Lake.

Can I use the Diablo Lake Ferry as part of my hike?

Yes, during the summer months (June to October), you have the unique option to complete the trail one-way and return via the Diablo Lake Ferry. This offers a different perspective of the lake and can make for a memorable experience. Be sure to check the ferry schedule in advance.

Is the Diablo Lake Trail suitable for families or beginners?

While considered moderate, the trail does have a steady uphill grade in the beginning and some rocky, narrow, and semi-steep sections. It might be challenging for very young children or those unaccustomed to hiking. However, active families and beginners with some hiking experience should find it manageable, especially if they are prepared for the elevation gain and varied terrain.

Is the Diablo Lake Trail a loop or an out-and-back route?

The Diablo Lake Trail is primarily an out-and-back route. However, as mentioned, during summer months, you can opt to hike one way and return via the Diablo Lake Ferry, effectively creating a point-to-point experience with a scenic boat ride.

Does the trail connect with other paths?

Yes, the route also passes through sections of the Diablo Lake Trail and the Sourdough Creek Trail. While the primary focus is the Diablo Lake Trail, you might encounter junctions or shared sections with these other paths.

Are there any specific challenges or tips for hiking the Diablo Lake Trail?

Be aware that some parts of the trail have obstructed views of the lake due to trees, and man-made elements like power lines and dam infrastructure can be visible in certain sections. The trail can be narrow in parts, and some sections offer views down to Diablo Lake that might be intimidating for those with a fear of heights. Always wear appropriate hiking footwear due to rocky terrain.

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Trail Reviews

Susanne B.
October 6, 2024, Diablo Lake Trail

Even if you don't have THE view of Lake Diablo, it's still a very nice hike. Not too strenuous, but not too monotonous either. The trail has just the right amount of everything.

Translated by Google
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