4.9
(64)
1,001
hikers
14
hikes
Family friendly hiking trails in Cowlitz County, Washington, traverse a landscape shaped by diverse topography, including lush forests, significant river systems, and features from past volcanic activity. The region offers a variety of experiences, from trails through regenerated forests and around lakes formed by the Mount St. Helens eruption to paths along the Cowlitz and Columbia Rivers. Hikers can explore areas within the vast Gifford Pinchot National Forest or enjoy easier walks around local lakes like Sacajawea and Coldwater. This…
Last updated: May 10, 2026
6
hikers
7.19km
02:25
510m
10m
Embark on the Boundary West Trail for a moderate hike that offers a unique perspective on the Mount St. Helens landscape. This 4.5-mile (7.2 km) route involves a significant elevation…
2.06km
00:31
10m
0m
Embark on an easy hike along the Marine Park Trail, a gentle route spanning 1.3 miles (2.1 km) with a minimal elevation gain of just 20 feet (6 metres). This…

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2.69km
00:45
50m
50m
Embark on an easy hike through the lush fir forests of Seaquest State Park on the Seaquest #2, #5, #9 Loop. This 1.7-mile (2.7 km) route offers a gentle ascent…
4.7
(11)
101
hikers
3.89km
01:04
60m
60m
Explore the unique landscape of the Hummocks Trail, an easy 2.4 miles (3.9 km) hike that takes about 1 hour and 3 minutes to complete. You will gain 184 feet…
5.0
(1)
13
hikers
18.6km
05:31
510m
510m
The South Coldwater and Lakes Trail Loop offers a challenging hike through a landscape profoundly shaped by the 1980 Mount St. Helens eruption. This difficult 11.5-mile (18.6 km) route takes…
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Popular around Cowlitz County
Marine Park is a beautiful park along the Columbia River. The park has several walking and biking paths, a beach and a picnic area.
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Seaquest State Park is a 475-acre park along the banks of Silverlake. The park has hiking trails, a campsite and views of Mount. St. Helen's volcano.
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Volcanic eruptions don't only destroy. Sometimes they also create, as happened here: Debris from the eruption blocked the normal outflow of Coldwater Creek, which ultimately created this beautiful lake.
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If you'd like to avoid crowds around the other side of Coldwater Lake, starting here and hiking northeast gets you some nice views over the lake from elevation. Or, if you don't mind walking beside the road for a short distance, you can use this trailhead to link a complete, challenging loop around the lake.
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All in all, the Boundary Trail runs some 57 miles, mostly east-west along the north side of Mount St. Helens. Shorter chunks of it, like this one, are handy for linking trailheads or completing trail loops.
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This so graceful lake looks like it has existed forever. However, it only emerged in 1980 after the eruption, as a landslide prevented the outflow. A lake was created from the former canyon, the development of which has been very well researched. Today even rainbow trout swim in the clear water.
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Here, you have a great view of the crater of Mount St. Helens.
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Cowlitz County offers a great selection of family-friendly hiking trails. This guide features 14 routes, with 11 of them rated as easy, making them perfect for families looking for accessible outdoor adventures.
The spring, summer, and fall months generally offer the most pleasant conditions for family hikes in Cowlitz County. Spring brings lush greenery and blooming wildflowers, while summer provides warm, sunny days. Fall showcases beautiful foliage. While some trails are accessible year-round, always check local conditions, especially in winter, as higher elevations may experience snow or ice.
Yes, Cowlitz County has several easy and relatively short trails perfect for families with young children or strollers. The Marine Park Trail is a very easy option, just over 2 km long with minimal elevation. Another great choice is the Hummocks Trail, which is an easy 3.9 km loop offering unique views of the Mount St. Helens area.
The family-friendly trails in Cowlitz County are highly rated by the komoot community, with an average score of 4.9 out of 5 stars from 63 ratings. Hikers often praise the well-maintained paths, the diverse scenery ranging from volcanic landscapes to lush forests, and the accessibility for all ages.
Many trails in Cowlitz County, especially within state parks and national forests, allow dogs on a leash. However, specific regulations can vary by park or trail. It's always best to check the rules for the particular trail you plan to visit beforehand to ensure a pleasant experience for everyone.
Absolutely! Loop trails are great for families as they bring you back to your starting point without retracing steps. The Seaquest #2, #5, #9 Loop in Seaquest State Park is an easy 2.7 km loop. The Hummocks Trail is another excellent easy loop option, offering a unique perspective of the Mount St. Helens landscape.
Cowlitz County's family-friendly trails offer a variety of natural attractions. You can explore the unique volcanic landscape around Mount St. Helens, with trails like the Hummocks Trail. Other highlights include the scenic Birth of a Lake Trail near Coldwater Lake, offering views of the lake formed by the 1980 eruption. You might also encounter the impressive Lewis and Clark Bridge, a historic landmark over the Columbia River.
While public transport options directly to remote trailheads might be limited, many family-friendly trails, especially those in or near towns like Longview or within state parks, offer dedicated parking areas. For trails further afield, driving is generally the most convenient option. Always check specific trailhead information for parking availability and any potential fees.
For a family hike in Cowlitz County, essential items include plenty of water, snacks, appropriate layers of clothing (weather can change quickly), sun protection (hats, sunscreen), and sturdy, comfortable shoes. Depending on the trail, insect repellent, a basic first-aid kit, and a map or GPS device are also recommended. Don't forget binoculars for wildlife viewing and a camera to capture the beautiful scenery!
Yes, several trails provide stunning views of Mount St. Helens, especially those located within the Mount St. Helens National Volcanic Monument area. The Hummocks Trail offers unique perspectives of the blast zone and the mountain's recovery. For more challenging views, the Boundary West Trail provides expansive vistas, though it's rated moderate due to its elevation gain.
Cowlitz County is rich with rivers and lakes, offering many family-friendly trails along waterways. Lake Sacajawea in Longview features an easy loop trail perfect for a leisurely family walk. Coldwater Lake, formed by the Mount St. Helens eruption, also has easy trails like the Birth of a Lake Trail, providing scenic lakeside experiences.


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