4.7
(3)
39
hikers
02:40
7.66km
440m
Hiking
Hike the 4.8-mile Cerro Alto Loop Trail for panoramic views of San Luis Obispo County and the Pacific Ocean from the summit.
Last updated: February 26, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
Parking
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4.43 km
Highlight • Summit
Tip by
7.66 km
End point
Parking
Way Types & Surfaces
Way Types
7.48 km
181 m
Surfaces
6.69 km
795 m
181 m
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Elevation
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Friday 3 July
22°C
9°C
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Max wind speed: 12.0 km/h
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This route was planned by komoot.
Yes, there is a $10 parking fee at the Cerro Alto Campground Trailhead. This fee helps support the maintenance of the area within the Los Padres National Forest.
Yes, dogs are welcome on the trail. Please ensure they are kept under control, preferably on a leash, to protect wildlife and ensure a pleasant experience for all hikers.
The best time to hike is generally during the cooler months, such as late fall, winter, and early spring. During summer or hot afternoons, the exposed sections of the trail can get very hot due to limited shade, making it less comfortable and requiring ample water.
While there isn't a specific hiking permit required for the trail itself, there is a $10 parking fee at the Cerro Alto Campground Trailhead, which serves as your access fee for the area within the Los Padres National Forest.
The trail offers diverse terrain. It starts with shaded oak woodlands along Morro Creek, then transitions to open grasslands and exposed mountain sides. Expect rocky sections, especially before a eucalyptus grove. There are steep inclines and declines, with some parts of the AT&T trail being narrow and steep. Loose dirt is common, so sturdy footwear is recommended.
This trail is generally rated as moderate to hard. With approximately 1,600 feet of elevation gain to the summit and significant inclines, it can be strenuous, especially in exposed areas with limited shade. It is less recommended for inexperienced hikers.
From the Cerro Alto summit, you'll be treated to spectacular, expansive 360-degree views of San Luis Obispo County, the Los Padres National Forest, and the Pacific Ocean. You can see the entire string of Morros, from Morro Rock to Islay Hill, and on very clear days, even the Sierra Nevada mountains.
Yes, there are different approaches. The shortest route is a steep 1.95-mile ascent. A more gradual trail covers 2.75 miles to a junction, which is often recommended for the uphill journey. Both options lead to the summit, offering varying levels of challenge.
Yes, the route also passes through sections of the AT&T Trail, Cerro Alto Upper Trail, Canyon Trail, and Bridge Trail, offering a varied hiking experience.
The trail has limited shade, especially in its upper sections. It can get very hot, particularly in the afternoons or during summer. It is crucial to bring ample water, more than you think you'll need, to stay hydrated throughout your hike.
The primary trailhead for the Cerro Alto Loop Trail is located at the Cerro Alto Campground Trailhead within the Los Padres National Forest, near San Luis Obispo, California.
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