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Mountain biking trails

View of Turtle Ridge – Old Emerald Trail loop from University of California, Irvine

Routes

Mountain biking trails

View of Turtle Ridge – Old Emerald Trail loop from University of California, Irvine

Expert

riders

View of Turtle Ridge – Old Emerald Trail loop from University of California, Irvine

03:37

34.7km

940m

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

Last updated: September 30, 2025

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Tips

Includes a segment that goes up or down a series of steps

You may need to carry your bike.

17 m in total

Waypoints

Start point

Bus stop

Get Directions

5.74 km

View of Turtle Ridge

Turtle Ridge in the spring allows you to see wildflowers such as, Indian paintbrush, Johnny jump-ups, mariposa lilies, and buttercups.

Tip by

9.67 km

Fence Line

Narrow trail meandering parallel to the main path.

Translated by Google •

Tip by

14.0 km

Old Emerald Trail

Be sure to plan this beautiful flowtrail

Translated by Google •

Tip by

21.8 km

Crystal Cove State Park

Crystal Cove State Park is a 2,400-acre park filled with singletrack trails and double-track roads that are great for biking. Depending on what bike you're on, you might want to …

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29.6 km

Bommer Canyon Open Space Preserve

Nature Reserve

31.7 km

Bommer Canyon Open Space Preserve

Bommer Canyon Preserve is part of the old Irvine Ranch Cattle Camp. Covered by a sycamore canopy, Bommer Canyon Preserve is also an important preservation area for many local plants and wildlife, including several endangered species.

Tip by

34.7 km

End point

Bus stop

Way Types & Surfaces

Way Types

15.4 km

14.9 km

4.33 km

164 m

Surfaces

21.6 km

8.47 km

2.89 km

1.64 km

< 100 m

Elevation

Highest point (310 m)

Lowest point (60 m)

Weather

Saturday 18 October

27°C

15°C

0 %

If you start your activity now...

Max wind speed: 5.0 km/h

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

View of Turtle Ridge – Old Emerald Trail loop from University of California, Irvine

View of Turtle Ridge

Fence Line

Old Emerald Trail

Crystal Cove State Park

Bommer Canyon Open Space Preserve

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