5.0
(7)
55
riders
4
rides
Gravel biking around South Run, located within Fairfax County, Virginia, offers access to diverse natural landscapes and extensive trail networks. The region is characterized by leafy green parkland, stream valleys, and significant natural features like Burke Lake and Lake Accotink. Many routes incorporate both paved and unpaved segments, providing varied terrain for gravel bikes.
Last updated: July 11, 2026
5.0
(5)
16
riders
21.2km
01:12
100m
100m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
10
riders
21.4km
01:39
120m
120m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(2)
11
riders
26.9km
01:33
150m
150m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
9
riders
21.8km
01:32
120m
120m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
9
riders
30.6km
01:48
200m
200m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Lake Mercer Park Loop offers an enjoyable hiking and bike experience with its combination of paved and gravel paths. You’ll find occasional side trails that lead to the lake by dirt paths, all boasting stunning views. This easy trail features several potential exit points near residential areas. As of 2025, T-Mobile users may experience low but existing cell phone coverage, here. Among the points of interest are a couple of bridges crossing creeks, the lake itself, a large dam, and facilities conveniently located near the parking area. This trail attracts hikers, cyclists, and joggers alike. If you decide to bring your dog, be sure to keep it leashed at all times, as per park regulations, as there are other dogs. This loop is perfect for testing out new gear and for core strength training in preparation for larger trips.
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The creek’s banks are often lined with a mix of mature trees, and some interesting rock formations along the water's edge, worn smooth by years of flowing water.
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The Burke Lake Trail is a loop trail that circumnavigates Burke Lake. It's a relatively flat gravel ride that is well maintained. This trail is doable on most bikes and gives riders a great view of the woods and the lake.
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Lake Accotink is a 55-acre reservoir situated along Accotink Creek. There are a bunch of trails around the lake (some paved and some dirt/gravel), and the Cross Country Trail through Lake Accotink Park is perfect for running.
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Lake Mercer is a picturesque lake surrounded by woods and 5.6 miles of paved trails. A great view of the lake is from this dammed area. It's a great spot for a bike ride with kids as well.
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South Run offers a selection of 10 gravel bike trails, catering to various skill levels. You'll find a balanced mix of easy and moderate routes to explore the area's natural beauty.
The gravel trails around South Run feature diverse terrain, from mostly gravel-surfaced paths like the Burke Lake Trail to sections with exposed roots, particularly in areas like Lake Accotink. The region is characterized by leafy green parkland, wooded areas, and stream valleys, offering a varied riding experience.
Yes, South Run has several family-friendly options. The Lake Accotink – Along Lake Accotink loop from Rolling Road is an easy 13.3-mile trail that offers scenic views and is suitable for a family outing. Burke Lake Park also features amenities like mini-golf and a miniature train, making it a great destination for all ages.
Many outdoor areas in South Run are dog-friendly, including the South Run RECenter which features a popular dog park. While specific trail rules for dogs vary, generally, dogs are welcome on trails if kept on a leash. Always check local signage for the most current regulations regarding pets on specific paths.
The trails around South Run are rich with natural beauty. You'll encounter picturesque views of Lake Accotink and Lake Mercer. The Burke Lake Trail, for instance, offers serene views of the 218-acre Burke Lake. The region is known for its leafy green parkland and diverse wildlife.
Parking is generally available at key access points for the trails. For instance, Burke Lake Park and South Run District Park offer parking facilities. For detailed information on specific trailheads and parking, it's advisable to check local park websites or trail maps.
Yes, many of the gravel bike routes in South Run are designed as loops, allowing you to start and end at the same point. Examples include the View of Burke Lake – Lake Accotink loop from Lorton and the Burke Lake – Lake Mercer loop from Lorton (Auto Train), which connect major lakes and offer varied terrain.
The komoot community highly rates the gravel biking experience in South Run, with an average score of 5.0 stars. Reviewers often praise the diverse natural landscapes, the extensive trail networks, and the peaceful escape offered by routes around Burke Lake and Lake Accotink.
The region's 'crisp, clean, countryside' makes spring and autumn particularly pleasant for gravel biking, with milder temperatures and beautiful foliage. While summer can be warm, the shaded sections of trails offer some respite. Winter conditions can vary, so checking local weather and trail conditions is always recommended.
While South Run offers a good mix of easy and moderate trails, some routes like the Lake Accotink – View of Burke Lake loop from Ravensworth, at 23.8 miles with over 800 feet of elevation gain, provide a more challenging experience. These routes often feature varied terrain and longer distances.
While the immediate trailheads are primarily natural areas, the South Run area is part of Fairfax County, Virginia, which has various dining options. You'll find cafes and restaurants in nearby towns and commercial centers, typically a short drive from the main parks like Burke Lake Park or South Run District Park.
Beyond the trails, you can explore several attractions. Lake Accotink Park offers beautiful lake views and additional activities. For a unique adventure, the Go Ape Zipline & Adventure Park is located at the South Run Rec Center. Burke Lake Park also provides a golf course, fishing, and boating opportunities.


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