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United States
California
San Diego County

Road Runner Loop

Moderate

4.8

(2065)

10,788

hikers

Road Runner Loop

03:10

10.9km

290m

Hiking

Hike the moderate 6.8-mile Road Runner Loop in San Diego National Wildlife Refuge, featuring reservoir views and varied terrain.

Last updated: February 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Waypoints

A

Start point

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1

452 m

Sweetwater Reservoir trail system

Highlight • Trail

The trails bordering Sweetwater Reservoir are mostly smooth dirt paths. Most of the intersections are marked, but the lesser used trails get overgrown at times. As you run closer to …

Tip by

2

8.76 km

Tiki Hut

Highlight • Mountain Hut

This is the perfect spot for a snack. Take a seat and enjoy the view.

Tip by

3

8.76 km

This small hut is a great shaded spot to stop and admire a viewpoint of the south end of the Sweetwater Reservoir.

Tip by

B

10.9 km

End point

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Way Types & Surfaces

Way Types

10.8 km

< 100 m

Surfaces

9.86 km

1.06 km

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Elevation

Elevation
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Weather

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Today

Thursday 12 November

27°C

14°C

0 %

Additional weather tips

Max wind speed: 14.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

What is the difficulty level of the Road Runner Loop trail?

The Road Runner Loop is considered a moderate hike. While some sections might be relatively level, you can expect gentle hills and ridge-top paths, making it suitable for hikers with some experience.

What kind of terrain can I expect on this hike?

The terrain on the Road Runner Loop is quite varied. You'll encounter well-defined paths and doubletracks, as well as brushier sections, especially near riparian zones. Surfaces can include sand, loam, and potentially some paved sections. Be aware that some parts of the trail are exposed.

What are the notable features and viewpoints along the route?

Along the Road Runner Loop, you'll find diverse scenery including oak woodlands, coastal scrub, and areas with ridge-top views. Key highlights include the Sweetwater Reservoir trail system, the Tiki Hut, and a Gazebo With View of Sweetwater Reservoir, offering picturesque spots to pause and enjoy the surroundings.

Does the trail intersect with other paths?

Yes, the Road Runner Loop utilizes sections of other official trails. Approximately 33% of the route follows the 'Roadrunner' trail, and about 26% is on the 'Sweetwater Access Road'.

Is the Road Runner Loop dog-friendly?

While many trails in the region are dog-friendly, specific regulations for the San Diego National Wildlife Refuge can vary. It's always best to check the official refuge guidelines regarding pets before bringing your dog, as leash rules and restricted areas may apply.

Are there any permits or entrance fees required for hiking in the San Diego National Wildlife Refuge?

No, there are typically no permits or entrance fees required to access the trails within the San Diego National Wildlife Refuge, including the Road Runner Loop. However, always check for any temporary closures or specific regulations before your visit.

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

The best time to hike the Road Runner Loop is generally during the cooler months, from fall through spring. During warmer months, especially summer, exposed sections can be very hot, so an early morning start is advisable. Always check for potential closures due to wet conditions in winter.

What kind of wildlife might I see?

The trail is named the 'Road Runner Loop' for a reason! You have a good chance of spotting actual roadrunners, along with other local wildlife common to coastal sage scrub habitats and riparian zones. Keep an eye out for various bird species and small mammals.

Is the trail suitable for families or beginners?

Given its moderate difficulty and varied terrain, the Road Runner Loop is generally considered family-friendly for those accustomed to hiking. Beginners might find some of the hilly sections challenging, but it's a manageable distance for most active individuals. It's a great option for experiencing diverse ecosystems.

Where can I park to access the trailhead?

Specific parking details for the Road Runner Loop trailhead are not provided, but trails within regional parks and nature centers often have designated parking lots. It's recommended to check local park websites or komoot's tour page for the most up-to-date trailhead access and parking information.

Are there any facilities or amenities nearby?

While the trail itself is within a natural setting, many 'Road Runner Loop' trails are located within regional parks or nature centers that may offer facilities like restrooms, picnic areas, and water fountains. For specific amenities, it's best to consult the San Diego National Wildlife Refuge's official information.

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