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United States
California
San Mateo County
Pacifica

Pedro Point and San Pedro Mountain Loop

Moderate

2.7

(12)

66

hikers

Pedro Point and San Pedro Mountain Loop

04:38

15.8km

440m

Hiking

Hike the Pedro Point and San Pedro Mountain Loop, a moderate 9.8-mile trail with 1437 feet of elevation gain and stunning ocean views.

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

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1

9.62 km

Devil's Slide Bunker

Highlight • Monument

The remains of this observation bunker built during World War II look as though it is ready to fall into the sea. This crumbling structure has amazing views and is …

Tip by

2

10.9 km

Devil's Slide Overlook

Highlight • Viewpoint

The former coastal highway is notorious for often sliding down the slope, requiring frequent repairs. Finally, after hundred years, this section was circumvented with a tunnel, and the old roadway …

Tip by

3

11.5 km

Upper Devil's Slide Vista Point

Highlight • Viewpoint

This viewpoint offers stunning panoramic views of the Pacific Ocean and the rocky coastline below. The entire California coastline is an aquatic highway for migratory whales, sea lions, Elephant seals and several varieties of dolphins.

Tip by

4

12.9 km

Ace Trail

Highlight (Segment) • Trail

Best way to bypass the dangerous and shoulderless Cabrillo Highway 1. A better paved trail is planned and might be available by 2024.

Tip by

B

15.8 km

End point

Parking

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Way Types & Surfaces

Way Types

6.80 km

5.96 km

1.57 km

1.35 km

119 m

< 100 m

Surfaces

5.81 km

4.11 km

3.46 km

1.74 km

745 m

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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 (300 m)

Lowest point (10 m)

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Weather

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Today

Wednesday 28 October

19°C

10°C

0 %

Additional weather tips

Expect light wind and shifting conditions.

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Frequently Asked Questions

Where can I park to access the Pedro Point and San Pedro Mountain Loop?

The most common access point for this loop is from the Devil's Slide parking lot. This lot provides convenient access to trails leading towards Pedro Point and San Pedro Mountain.

Are dogs allowed on the trails?

Yes, dogs are generally permitted on the trails within the Pedro Point Headlands area. However, they must be kept on a leash at all times to protect wildlife and ensure the safety of other hikers. Please remember to pack out all pet waste.

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

Spring is an excellent time to visit, as the coastal prairies burst with wildflowers. Fall also offers pleasant weather and opportunities to spot migrating gray whales. The views are spectacular year-round, but be prepared for coastal fog at any time.

Do I need a permit or pay an entrance fee for the Pedro Point Headlands?

No, there are no permits required or entrance fees to hike the Pedro Point Headlands or the trails within this loop. The area is managed for public access and enjoyment.

What is the terrain like on this hike?

The terrain is quite varied. You'll encounter steep climbs and descents, often on fire roads or singletrack paths. Some sections are broad and paved, while others can be narrow and rough, with loose gravel. Be aware of poison oak, which is prevalent in some areas, and note that erosion can affect certain coastal paths.

What notable features or viewpoints will I see along the route?

This loop offers numerous scenic spots. You'll pass by the historic Devil's Slide Bunker and enjoy panoramic ocean views from Devil's Slide Overlook and Upper Devil's Slide Vista Point. From higher elevations, you can often see San Pedro Rock, Shelter Cove, Pacifica, and even Marin County and San Francisco Bay.

Does this trail intersect with other well-known paths?

Yes, the route incorporates sections of several other trails. You'll hike along parts of the Old San Pedro Mountain Road, Historic "Old Colma Rd" (1879-1915) AKA Devil's Slide, Devil’s Slide Trail, and the Ace Trail, among others.

Is this loop suitable for beginners?

Given its moderate difficulty, 15.8 km distance, and 438 meters of elevation gain, this specific loop is best suited for hikers with some experience. While some shorter loops in the area are easier, this comprehensive route includes challenging uphill sections.

What kind of wildlife or plants might I encounter?

The area is rich in biodiversity. You can expect to see a variety of birds, especially in the coastal prairies. Keep an eye out for wildflowers in spring, and if you're lucky, you might spot migrating gray whales during spring and fall. The flora includes oak forests, Monterey pines, eucalyptus, and various chaparral flowers and coastal scrub.

Are there any unique historical elements on the trail?

Yes, the route follows parts of the Old San Pedro Mountain Road, a historical thoroughfare that once connected coastal towns. You might notice remnants of broken pavement and even old wrecked cars, offering a glimpse into the area's past. The summit of San Pedro Mountain also hosts a former Nike missile site, now a prime viewpoint.

What should I bring for this hike?

Given the varied terrain and coastal exposure, it's advisable to bring layers of clothing, plenty of water, snacks, sun protection (hat, sunscreen), and sturdy hiking shoes. A map or GPS device is also recommended, as some sections can be less clearly marked. Be prepared for potential poison oak and loose gravel.

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