The best waterfall hikes and walks in Lake Sammamish State Park
4.8
(212)
2,981
hikers
26
hikes
Hiking in Lake Sammamish State Park offers diverse landscapes, including deciduous forests, wetland vegetation, and extensive waterfront along the southern end of Lake Sammamish. The park features salmon-bearing creeks, contributing to its ecological importance. Terrain varies from paved paths to compacted dirt and gravel trails, providing varied surfaces for exploration.
Best waterfall hiking trails in Lake Sammamish State Park
- The most popular waterfall hiking route is Cougar Mountain to East Fork Trail via Coal Creek Falls loop, a 6.0 miles (9.6 km) trail that takes 2 hours 44 minutes to complete. This moderate route features the scenic Coal Creek Falls.
- Another top favourite among local hikers is Cave Hole and Coal Creek Falls Loop, an easy 3.2 miles (5.1 km) path. This trail offers views of Coal Creek Falls and passes through varied forest terrain.
- Local hikers also love the Longview Peak and Far Country Lookout Loop, a 6.5 miles (10.5 km) trail leading through forested areas, often completed in about 3 hours 8 minutes.
- Hiking in Lake Sammamish State Park is defined by deciduous forests, wetland vegetation, and the waterfront of Lake Sammamish. The network offers options for different ability levels, from easy strolls to moderate climbs.
- The routes in Lake Sammamish State Park are highly rated by the komoot community with an average score of 4.7 stars from over 250 reviews. More than 3600 hikers have used komoot to explore Lake Sammamish State Park's varied terrain.
Last updated: April 24, 2026
5.0
(1)
9
hikers
9.60km
02:44
220m
220m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
1
hikers
4.53km
01:37
350m
120m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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17
hikers
10.3km
03:24
480m
480m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(10)
75
hikers
10.5km
03:07
310m
310m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(3)
13
hikers
7.93km
02:22
200m
360m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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Tips from the Community
Pretty -- don't be deceived by what looks like a trail on the far side of the falls though, it's not a real trail.
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There's a small place between the main sections where you can step aside -- otherwise there's no room for two people in opposite directions, so look up
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Bring bug spray for the higher elevations if going in summer.
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Cougar Mountain Park spans nearly 3,000 acres, featuring over thirty-five miles of fantastic trails winding through second-growth forests, streams, wetlands, cliffs, and historical mining caves. There are breathtaking views throughout the park of the Cascade Mountains, Lake Sammamish, Bellevue and Seattle, along with other more secluded areas, which are ideal for spending time surrounded by nature away from the fast pace of the city. Most trails are mainly for hikers; however, some allow horseback riding, so keep an eye out for equestrians as you explore this beautiful area.
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Cougar Mountain is a peak at the eastside of Seattle. The forested heart of the hill was officially preserved by King County in June 1983 as Cougar Mountain Regional Wildland Park.
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Cougar Mountain is a peak at the eastside of Seattle. The forested heart of the hill was officially preserved by King County in June 1983 as Cougar Mountain Regional Wildland Park.
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Coal Creek Falls is a beautiful destination for any day hiker looking for an easy, family-friendly trail with a scenic highlight at Coal Creek Falls. It's a fairly easy trail that winds through a dense forest of maples, alders and cedars.
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Whittaker Wilderness Peak Trail leads through beautiful forest and includes a crossing over a wooden bridge. It forms a loop with Wilderness Cliffs Trail and leads all the way up to Wilderness Peak.
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Frequently Asked Questions
Are there actual waterfalls within Lake Sammamish State Park?
While Lake Sammamish State Park itself is known for its lakefront and diverse ecosystems, the primary waterfall mentioned in the context of nearby hiking trails is Coal Creek Falls. Trails like the Cougar Mountain to East Fork Trail via Coal Creek Falls loop and the Cave Hole and Coal Creek Falls Loop offer access to this scenic feature.
How many waterfall hiking trails are available in the Lake Sammamish State Park area?
The broader area around Lake Sammamish State Park offers a variety of hiking opportunities, with over 28 routes in total. Many of these, particularly those featuring Coal Creek Falls, are popular choices for waterfall enthusiasts.
What is the difficulty level of waterfall hikes in this region?
You'll find a range of difficulties. For example, the Cave Hole and Coal Creek Falls Loop is an easy 3.2-mile path, suitable for a relaxed outing. More moderate options include the Cougar Mountain to East Fork Trail via Coal Creek Falls loop, which is about 6 miles long.
Are there any family-friendly waterfall trails?
Yes, the Cave Hole and Coal Creek Falls Loop is an excellent choice for families. It's an easy 3.2-mile path that offers views of Coal Creek Falls and passes through varied forest terrain, making it enjoyable for all ages.
Can I bring my dog on the waterfall trails?
Many trails in the region are dog-friendly, but it's always best to check specific trail regulations before you go. Generally, dogs are welcome on leash in most state park areas and trails, but always ensure you clean up after your pet.
What are some notable natural features or wildlife I might encounter on these hikes?
Beyond the waterfalls, the park and surrounding areas boast diverse ecosystems, including deciduous forests and wetland vegetation. You might spot salmon in the creeks, observe a great blue heron rookery, or even catch a glimpse of bald eagles. The extensive waterfront of Lake Sammamish also offers scenic views.
Are there any circular routes that include waterfalls?
Yes, several popular routes are loops. The Cougar Mountain to East Fork Trail via Coal Creek Falls loop is a moderate 6-mile option, and the Cave Hole and Coal Creek Falls Loop is an easier 3.2-mile loop, both featuring Coal Creek Falls.
What do other hikers say about the trails in Lake Sammamish State Park?
The trails in Lake Sammamish State Park are highly rated by the komoot community, with an average score of 4.7 stars from over 250 reviews. Hikers often praise the varied terrain, well-maintained paths, and the natural beauty of the forests and waterfront.
What amenities are available near the waterfall trails?
Lake Sammamish State Park offers numerous amenities. You'll find picnic tables, barbeque grills, and reservable picnic shelters. There are also playgrounds at Tibbetts and Sunset Beaches, and during warmer months, kayak, paddleboard, and pedal boat rentals are available. For more details on park facilities, you can visit the official state park website: wa.gov.
Is there public transport or parking available for accessing these trails?
Lake Sammamish State Park is generally accessible by car, with parking available within the park. For detailed information on public transport options to the park or specific trailheads, it's recommended to check local transit schedules or the park's official website for the most current information: wa.gov.
Are there any longer, more challenging waterfall hikes in the area?
For those seeking a longer adventure, the Longview Peak and Far Country Lookout Loop, while not explicitly a waterfall trail, is a 6.5-mile route through forested areas that takes about 3 hours to complete. It offers a good workout and scenic views, often combined with other trails to extend the hike.
Most popular routes in Lake Sammamish State Park
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