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Hiking trails & Routes
United States
Oregon
Coos County

South Slough National Estuarine Research Reserve loop

Routes
Hiking trails & Routes
United States
Oregon
Coos County

South Slough National Estuarine Research Reserve loop

Easy

4.8

(3251)

8,901

hikers

South Slough National Estuarine Research Reserve loop

01:21

4.83km

100m

Hiking

Embark on an easy hike through the South Slough National Estuarine Research Reserve loop, a 3.0-mile (4.8 km) route that guides you through a blend of Pacific Northwest forest and sunlit marsh. You will gain 322 feet (98 metres) in elevation over approximately 1 hour and 21 minutes, experiencing varied…

Last updated: April 23, 2026

Waypoints

A

Start point

Parking

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1

2.28 km

South Slough Inlet

Highlight • River

Vast tidal flats, marshes, and meandering channels in estuaries mitigate flooding. They enhance water quality by filtering sediment and pollutants. Beautiful places like the South Slough inlet of the Coos estuary offer work and recreation opportunities.

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B

4.83 km

End point

Parking

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Way Types & Surfaces

Way Types

4.76 km

< 100 m

< 100 m

Surfaces

4.76 km

< 100 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (90 m)

Lowest point (0 m)

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Weather

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Today

Wednesday 27 May

16°C

10°C

8 %

Additional weather tips

Max wind speed: 31.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

What is the terrain like on the South Slough National Estuarine Research Reserve loop?

The loop offers a diverse experience, transitioning from verdant Pacific Northwest forests with Douglas fir, cedar, and hemlock to sunlit marsh environs. You'll encounter a mix of dirt paths, gravel, woodchip trails, and extensive boardwalks, especially in wetland areas. The understory is lush with ferns, skunk cabbage, and rhododendrons, creating a unique atmosphere.

Is this trail suitable for beginners or families?

Yes, this loop is rated as easy and is generally suitable for beginners and families. The South Slough Reserve offers a range of trails, and while some are short, combining them creates a pleasant, manageable hike. Comfortable shoes are recommended, and some sections, like the Big Cedar Trail, are even wheelchair-accessible.

What wildlife can I expect to see along the route?

The reserve is a haven for diverse wildlife. Keep an eye out for black bears, elk, bobcats, and various salmon species. It's also an excellent spot for birdwatching, especially during winter when migratory ducks are present. Observation decks and boardwalks provide great vantage points for spotting animals without disturbing them.

What is the best time of year to hike this loop?

The South Slough National Estuarine Research Reserve is beautiful year-round, but the best time often depends on your interests. Spring brings lush greenery and blooming rhododendrons, while fall offers vibrant colors. Winter is excellent for birdwatching due to migratory ducks. Summer provides generally milder weather for hiking. Dressing in layers is always a good idea due to rapidly changing coastal weather.

Is the South Slough National Estuarine Research Reserve loop dog-friendly?

No, dogs are generally not permitted on the trails within the South Slough National Estuarine Research Reserve to protect the sensitive wildlife and habitats. It's best to leave your furry friends at home for this particular hike.

Are there any notable viewpoints or landmarks along the way?

Absolutely! The trail offers views of the South Slough, salt marshes, and mudflats. You'll find numerous boardwalks and observation decks that allow you to experience the wetlands and estuary up close. One specific highlight along the route is the South Slough Inlet, offering scenic water views.

Do I need a permit or is there an entrance fee for the reserve?

No, there are typically no permits or entrance fees required to access the trails at the South Slough National Estuarine Research Reserve. It's free to explore this important protected area.

Where can I park to access the trailhead?

Parking is available at the Interpretive Center, which serves as a primary access point for the reserve's trail network. From there, you can easily connect to various trails, including those that form this loop.

Does this loop intersect with other trails?

Yes, the route utilizes sections of several trails within the reserve. Specifically, it passes through parts of the Oregon Coast Scenic Bikeway, the Oregon Coast Trail, and the 10 Minute Trail, allowing you to experience different facets of the reserve's network.

What should I wear and bring for this hike?

Given the varied terrain and coastal weather, comfortable walking or hiking shoes are recommended. Dressing in layers is essential, as conditions can change quickly. Bring water, snacks, and consider binoculars for wildlife viewing. Insect repellent can also be useful, especially in marshier areas.

What makes the South Slough National Estuarine Research Reserve unique?

The reserve holds significant historical and ecological importance as the first National Estuarine Research Reserve established in the U.S. in 1974. It's a living laboratory protecting nearly 7,000 acres of diverse habitats, from forests to wetlands, making it a critical site for research, education, and stewardship of estuary environments.

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