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Routes
Road cycling routes
United States
California
Orange County
Newport Beach

Mountains to Sea Trail

Moderate

2.8

(20)

59

riders

Mountains to Sea Trail

02:10

49.0km

290m

Road cycling

Embark on the Mountains to Sea Trail for a moderate road cycling adventure through Orange County. This route spans 30.4 miles (49.0 km) and includes a manageable 940 feet (286 metres) of elevation gain, typically taking about 2 hours and 9 minutes to complete. You will enjoy a pleasant ride primarily on dedicated bike paths, cycling alongside the scenic San Diego Creek Trail and passing the tranquil Lower Peters Canyon Reservoir, which offers a refreshing break from urban surroundings.

Planning your ride on the Mountains to Sea Trail is straightforward as the route is generally accessible. You will find parking available at various points along the trail, particularly near parks and trailheads. Always remember to check local signage for specific parking regulations before you leave your vehicle. Fortunately, no special permits or fees are typically required to enjoy cycling this public route.

This trail stands out for its unique ability to connect you with the natural landscape of Orange County on two wheels. By following the San Diego Creek Trail, you get to experience diverse views and a peaceful atmosphere. The inclusion of the Lower Peters Canyon Reservoir as a landmark further enhances the journey, providing a distinct visual element that sets this route apart in the region.

Last updated: April 23, 2026

Waypoints

A

Start point

Bus stop

Get Directions

1

6.64 km

San Diego Creek Trail

Highlight (Segment) • Cycleway

This section of the San Diego Bike Trail runs from Jamboree Rd to Harvard Ave, and is about 4mi (6.5km) in length. It connects the Back Bay Drive and Back Bay Loop Trail in Newport Beach with the Peters Canyon Bikeway in Irvine.
At the northern end, where the Peters Canyon Bikeway branches off, the San Diego Trail continues eastwards.

Tip by

2

18.0 km

Peters Canyon Trail (Portola to Walnut)

Highlight (Segment) • Trail

Peters Canyon Trail runs along the channel until it merges with the San Diego Creek Trail a little past Walnut Rd.

Tip by

3

25.4 km

Encircling the shimmering Lower Peters Canyon Reservoir, this trail offers mountain bikers panoramic views of the glistening water backed by rolling, golden hills.

Tip by

B

49.0 km

End point

Bus stop

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Way Types & Surfaces

Way Types

41.9 km

4.26 km

1.68 km

955 m

193 m

Surfaces

36.3 km

12.7 km

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Elevation

Elevation

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

Highest point (110 m)

Lowest point (0 m)

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Weather

Powered by Foreca

Today

Wednesday 6 May

20°C

14°C

0 %

Additional weather tips

Max wind speed: 21.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

What is the overall difficulty of the Mountains to Sea Trail for cycling?

This route is generally considered moderate for racebike cycling. While it features some elevation changes, it's manageable for cyclists with a reasonable fitness level.

What kind of terrain can I expect on this cycling route?

The route primarily follows paved paths and roads suitable for racebikes. You'll encounter sections along the San Diego Creek Trail and the Peters Canyon Trail (Portola to Walnut), offering a mix of dedicated cycleways and shared road segments.

What are the main points of interest along the way?

You'll cycle past scenic areas like the San Diego Creek Trail and the Peters Canyon Trail (Portola to Walnut). A notable highlight is the Lower Peters Canyon Reservoir, offering pleasant views.

Is the Mountains to Sea Trail a loop or an out-and-back route?

The Komoot tour for the Mountains to Sea Trail is an out-and-back route, starting near Corona del Mar and heading towards the Lower Peters Canyon Reservoir before returning.

Where can I park to access the Mountains to Sea Trail?

Given the starting point near Corona del Mar, you can look for public parking options in that area. For the Lower Peters Canyon Reservoir end, parking is typically available at Peters Canyon Regional Park.

What is the best time of year to cycle this route?

Southern California generally offers pleasant cycling weather year-round. Spring and fall provide mild temperatures, while summer can be warm, especially in the afternoon. Winter is usually cool and sunny, making it a good option.

Are dogs allowed on the Mountains to Sea Trail?

While specific sections may have different rules, dogs are generally permitted on leash on many multi-use paths and trails in Orange County, including parts of Peters Canyon. Always check local signage for specific regulations.

Do I need a permit or pay an entrance fee for this trail?

No specific permits are generally required for cycling the public paths and roads that make up this route. Some regional parks along the way, such as Peters Canyon Regional Park, may have parking fees, but access to the trails themselves is typically free.

Does this route intersect with other well-known paths?

Yes, the route incorporates sections of several other paths. Notably, it uses parts of the Mountains to Sea Trail (50%), Peters Canyon Bikeway (34%), and the San Diego Creek Bike Trail (23%). You'll also find smaller segments of trails like the Regional Parks Connector Bikeway and West Irvine Trail.

Is the Mountains to Sea Trail suitable for beginners?

With a moderate difficulty rating and a distance of approximately 49 km, this route is best suited for cyclists who are comfortable with longer rides and some elevation changes. Beginners might consider tackling shorter sections first.

What should I bring for a cycling trip on this trail?

For a racebike tour of this length, essential items include water, snacks, a helmet, sun protection (sunscreen, sunglasses), a repair kit for flats, and a charged phone. Given the urban and suburban nature of parts of the trail, there are opportunities for refreshments along the way.

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4.5

327

Mountains to Sea and Back Bay Loop

01:55h

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220m

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