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Routes
Hiking trails & Routes
United States
Washington
King County
Bellevue

Bellefields Loop Trail

Easy

4.5

(6407)

13,869

hikers

Bellefields Loop Trail

00:31

1.93km

20m

Hiking

The Bellefields Loop Trail offers an easy hiking experience, covering 1.2 miles (1.9 km) with a gentle elevation gain of 81 feet (25 metres). You can expect to complete this loop in about 31 minutes, making it ideal for a quick outing. As you hike, you'll find yourself moving through…

Last updated: April 23, 2026

Waypoints

A

Start point

Parking

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B

1.93 km

End point

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Way Types & Surfaces

Way Types

1.36 km

542 m

< 100 m

< 100 m

Surfaces

1.21 km

569 m

128 m

< 100 m

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Elevation

Elevation

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Weather

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Today

Monday 1 June

24°C

8°C

0 %

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Max wind speed: 16.0 km/h

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Frequently Asked Questions

Where can I park for the Bellefields Loop Trail?

The Bellefields Loop Trail is located within Mercer Slough Nature Park. Parking is typically available at the Mercer Slough Environmental Education Center, which serves as a common access point for trails in the park. It's advisable to check the official Bellevue Parks website for the most current parking information and hours of operation.

Is the Bellefields Loop Trail dog-friendly?

Yes, the Bellefields Loop Trail is dog-friendly. Dogs are generally permitted on trails within Mercer Slough Nature Park, but they must be kept on a leash at all times to protect the park's sensitive wetland ecosystem and wildlife.

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

The Bellefields Loop Trail can be enjoyed year-round. However, spring and fall offer particularly pleasant conditions with mild temperatures and vibrant scenery. Spring brings blooming wildflowers, while fall showcases beautiful autumn colors. During the wetter months, be prepared for muddy sections, especially in wetland areas, and consider wearing waterproof footwear.

Are there any permits or fees required for hiking in Mercer Slough Nature Park?

No, there are no permits or entrance fees required to access the Bellefields Loop Trail or other trails within Mercer Slough Nature Park. The park is free and open to the public.

What is the terrain like on the trail?

The trail features a very soft doubletrack surface composed of dirt, wood chips, and pine needles. Sections also include wooden boardwalks, particularly when traversing bogs and swampier areas. While generally flat with minimal elevation gain, some connector paths may have short ups and downs. Be aware that parts of the trail can be muddy, especially in wetland areas.

What kind of scenery and wildlife can I expect to see?

Hikers can expect diverse and lush scenery, winding through dense wooded areas, grassy fields, and along a creek. The trail offers an excellent opportunity to explore Lake Washington's largest remaining wetland. The park is home to over 113 species of birds, 25 species of mammals (like river otters and coyotes), and 19 species of fish, making it great for wildlife viewing. Interpretive signs along the way provide information about the local flora and fauna.

Is this trail suitable for beginners or families?

Absolutely! The Bellefields Loop Trail is considered very easy and flat, making it ideal for beginners, families with children, and anyone looking for an accessible and gentle outdoor experience. Its low difficulty and engaging natural environment make it a popular choice for all ages.

Does this trail connect to other paths in Mercer Slough Nature Park?

Yes, the Bellefields Loop Trail connects to other trails within Mercer Slough Nature Park, such as the Heritage Loop Trail, allowing for longer explorations. It also forms part of the broader network of trails in the area, including sections of the Lake to Lake Trail and the Lake Washington Loop.

Are there educational opportunities along the trail?

Yes, the trail is located near the Mercer Slough Environmental Education Center, which offers visitor information, interactive exhibits, and trail maps. Additionally, interpretive signs along the trail enhance the experience by providing information about the local flora and fauna, making it a great learning opportunity.

Are there restrooms or amenities near the trailhead?

Restrooms and visitor information are available at the Mercer Slough Environmental Education Center, which is a primary access point for the trails in the park. It's a good idea to utilize these facilities before heading out on your hike.

What should I bring for a hike on this trail?

Given the trail's easy nature, essential items include comfortable walking shoes (waterproof shoes are recommended, especially during wetter seasons), water, and appropriate clothing for the weather. Binoculars can enhance wildlife viewing, and insect repellent might be useful during warmer months.

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