5.0
(2646)
15,663
hikers
01:01
4.04km
10m
Hiking
The Theler Wetlands Trails offer a serene and picturesque journey through diverse ecosystems, including tidal wetlands, salt marshes, and forested areas. You'll wander along flat, well-maintained paths and boardwalks, with highlights like the Union River Estuary and observation decks providing panoramic views of the wetlands and Hood Canal. This easy…
Last updated: June 9, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Waypoints
Way Types & Surfaces
Way Types
3.20 km
839 m
Surfaces
2.08 km
1.13 km
820 m
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Elevation
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Weather
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Sunday 5 July
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10°C
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Max wind speed: 11.0 km/h
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This route was planned by komoot.
Parking is available at the Mary E. Theler Wetlands Nature Preserve. The trails are easily accessible from the main parking areas, which are typically well-marked.
Dogs are generally prohibited on the main estuary trails to protect the sensitive wildlife. However, a "Bark Park" may be available near the Salmon Center for your furry friends.
The trails are suitable for hiking year-round, including snow-free winter conditions. Each season offers unique wildlife viewing opportunities, especially for birdwatching.
No, there are typically no entrance fees or permits required to access the trails within the Mary E. Theler Wetlands Nature Preserve.
Yes, the Theler Wetlands Trails are considered easy, with minimal elevation gain, making them ideal for hikers of all skill levels, including families with children. Many sections are also ADA accessible, suitable for wheelchairs and strollers.
The terrain is predominantly flat and well-maintained, featuring hard-packed gravel, dirt paths, and extensive boardwalks. While generally smooth, some sections can be slippery when wet, and dirt paths might become muddy after rain, so waterproof footwear is recommended.
You can expect a rich variety of landscapes, including tidal wetlands, salt marshes, and forested areas. It's a premier birdwatching site, with opportunities to spot eagles, ospreys, herons, and various waterfowl. You might also see otters, deer, beavers, and seals, along with views of Hood Canal and the Olympic Mountains on clear days.
The various interconnected paths offer a typical roundtrip distance of about 3 to 3.5 miles (5 to 5.6 kilometers). The duration depends on your pace and how many of the different trail options you explore, but the full route described here takes approximately 1 hour and 1 minute.
Yes, the preserve offers several distinct trails, such as the River Estuary Trail, South Tidal Marsh Trail, Sweetwater Creek Trail, and Alder Creek Swamp Trail. These allow for varied out-and-back excursions or the creation of custom loops.
Given the potential for wet conditions, waterproof footwear is highly recommended. Binoculars are a great idea for birdwatching, and don't forget water, snacks, and a camera to capture the scenic views and wildlife.
Yes, the preserve has an educational role. You'll find interpretive displays along the trails, and the nearby Salmon Center offers insights into salmon conservation. The Wetlands Project Center (when open) may also feature exhibits.
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