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Mountain biking trails

San Diego County

Sweetwater Bikeway Tunnel – Sweetwater River loop from Beyer Boulevard

Mountain biking trails

San Diego County

Sweetwater Bikeway Tunnel – Sweetwater River loop from Beyer Boulevard

Moderate

2.7

(16)

39

riders

Sweetwater Bikeway Tunnel – Sweetwater River loop from Beyer Boulevard

03:51

63.3km

510m

Mountain biking

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: September 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

San Diego Bay National Wildlife Refuge

Waypoints

A

Start point

Train Station

1

21.9 km

View of the Otay Mountain Wilderness from the Lower Otay Reservoir

Highlight (Segment) • Viewpoint

The trails near the northern part of Lower Otay Reservoir offer great views towards the Otay Mountain Wilderness area. The reservoir is a common spot for runners and hikers with Otay Mountain as the backdrop.

Tip by

2

25.2 km

Upper Otay Reservoir Trail

Highlight (Segment) • Trail

There is a small network of dirt and wood chip trails and gravel service roads circling around the Upper Otay Reservoir. This little lake is much smaller than its lower …

Tip by

3

26.3 km

Proctor Valley Natural Resource Area

Highlight • Natural Monument

This area is the northernmost part of Otay Ranch and the southern part of the San Diego National Wildlife Refuge. The scenic views of rolling hills and well-maintained trails make it a highly popular biking area.

Tip by

4

38.7 km

Sweetwater Park Trail

Highlight (Segment) • Trail

Within Sweetwater Regional Park, Sweetwater Park Trail winds throughout peaceful surroundings of native flora. Keep in mind that it can get quite muddy If you're visiting after a rain.

Tip by

5

41.8 km

Sweetwater County Park

Highlight • MTB Park

Sweetwater Bike Park offers a variety of features for mountain bikers of all skill levels, including four jump lines ranging from beginner to expert, a kid's pump track, a skill zone, two flow trails, and a perimeter trail.

Tip by

6

42.0 km

Sweetwater Bikeway Tunnel

Highlight • Bridge

This cool tunnel skirts under the road. The path switches from the Sweetwater Bikeway to the Sweetwater Park Trail shortly after passing under the tunnel (headed north).

Tip by

7

45.8 km

Sweetwater River

Highlight • River

The Sweetwater River starts high in the Cuyamaca Mountains. The name "Sweetwater" originates from the olden days when people would generally refer to a fresh water river as a sweet …

Tip by

8

53.9 km

Bayshore Bikeway – Salt Flats Section

Highlight (Segment) • Cycleway

This section of the Bayshore Bikeway passes through the property of the San Diego Bay National Wildlife Refuge. You actually get to run by ponds in the refuge the whole …

Tip by

B

63.3 km

End point

Train Station

Way Types & Surfaces

Way Types

35.2 km

7.79 km

6.77 km

4.82 km

4.33 km

3.02 km

1.22 km

210 m

Surfaces

46.0 km

7.89 km

6.87 km

2.33 km

256 m

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Elevation

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

Highest point (210 m)

Lowest point (0 m)

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Weather

Powered by Foreca

Saturday 17 October

33°C

23°C

0 %

Additional weather tips

Max wind speed: 9.0 km/h

to get more detailed weather forecasts along your route

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