Lemon Grove Loop Trail San Luis Obispo hike Cerro San Luis Lemon Grove Loop Trail

This 2.2-mile loop explores a 120-acre open space between Cerro San Luis and downtown San Luis Obispo. With just three hundred feet of elevation gain, this is a quick hike on its own, or an easy extension to the steeper trek up Cerro San Luis. The abandoned lemon grove that gives the trail its name is less exciting than it sounds, but the views over this city are rewarding.

Begin hiking north from the trailhead at the end of Marsh Street. After a tenth of a mile, a smaller trail breaks off to the right. This is the lower half of Lemon Grove Trail. As loops go, you could turn here, or continue straight up the wider main trail.

Lemon Grove Trail
The start of Lemon Grove Loop

Stay to the left to ascend further up the main trail toward Cerro San Luis. Beyond a bench nestled between patches of prickly pear cacti, and half a mile from the start, stay to the right as the trail to the summit breaks off to the left. Continue to the right through a junction with another trail heading toward Cerro San Luis. Progress north along the east side of the mountain on a slope dominated by black sage. Just before reaching a strip of eucalyptus trees, turn left and look up at the white “M” on the side of the mountain. The “M” represents Mission Prep School, which can be seen next to the historic mission in the city below. The tall white letter can be reached on “M” Trail, a short trail further up Cerro San Luis.

Take a left passing through a gate within the eucalyptus grove to maintain your elevation around the peak. After a short distance, pass through a second gate and continue around the mountain. Just before reaching a third gate, there is a turnoff on the left into the unimpressive grove where lemons were grown a century ago. Since there are no lemons today, loop back to the trailhead. In front of the gate at the north end of the open space, follow the trail to the right to circle back toward the eucalyptus grove. Continue on this track as it progresses back to the trailhead just above the houses and apartments bordering the trail.

Lemon Grove Trail
An outcropping along the lower side of the loop

Lemon Grove Loop Trail
Looking southeast over the lower half of Lemon Grove Loop Trail

To extend this hike, pass through the gate at the north end of Maino Open Space to get a nice view of Bishop Peak from a ranching pasture north of Cerro San Luis. Make the ascent on Cerro San Luis for an even grander hike. Dogs and bikes are permitted. No fee or permit is required to hike Lemon Grove Loop Trail, so get out and enjoy.

To get to the trailhead: From downtown San Luis Obispo, take Higuera Street southeast to Marsh Street and turn right. Pass beneath the 101 Freeway, and turn right on Fernandez Lane (the only road on the right before Marsh Street turns on to the 101 South). Turn right into the dirt parking area, and you have arrived.

Trailhead address: 1183 Fernandez Road, San Luis Obispo, CA 93405
Trailhead coordinates: 35.274897, -120.672369 (35° 16′ 29.62″N 120° 40′ 20.52″W)

Use the map below to view the trail (in yellow) and get directions:

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Cerro San LuisCerro San LuisLemon Grove Loop TrailLemon Grove Loop TrailLemon Grove Loop TrailLemon Grove Loop TrailLemon Grove Loop TrailLemon Grove Loop TrailLemon Grove Loop TrailLemon Grove Loop TrailLemon Grove Loop TrailLemon Grove Loop TrailLemon Grove Loop TrailLemon Grove Loop TrailLemon Grove Loop Trail
Lemon Grove Trail – Alternate Trail (Backside Trail) Connector
Lemon Grove Loop TrailCerro San Luis HikeCerro San Luis HikeCerro San Luis HikeBishop PeakBishop PeakBishop Peak

These photos were taken in April of 2010, 2011, and 2015. Click to enlarge.
Nearby Trails
California HikeCerro San Luis
This 4-mile hike summits one of the Nine Sisters just west of downtown San Luis Obispo.
Cerro San Luis M Trail“M” Trail
This spur off the trail up Cerro San Luis makes its own 1.9-mile round trip hike leading to the large white “M” installed halfway up the east side of the mountain.
California HikeCerro San Luis from Laguna Lake Park
This 5.7-mile hike reaches the summit from a nearby park.
Bishop Peak TrailBishop Peak
This 3.5-mile hike ascends 950 feet to highest summit in the Nine Sisters, offering excellent views of San Luis Obispo and the surrounding Morros.
Felsman Loop TrailFelsman Loop Trail
This 2.7-mile loop crosses oak, sagebrush, and grass-covered slopes around the base of Bishop Peak, providing excellent views of that notable rocky summit and its San Luis Obispo surroundings.
South Hills TrailSouth Hills Ridge Trail
This 1.5-mile round trip hike ascends 450 feet to the highest point in a cluster of hills near downtown San Luis Obispo, offering fine views over the city and surroundings.
Islay HillIslay Hill
This 1.8-mile round trip hike climbs 550 feet to the top of San Luis Obispo’s easternmost Morro.
Reservoir Canyon TrailReservoir Canyon
This 5.35-mile hike ascends 1,350 feet past a waterfall and a collection of junk sculptures on the way to a treeless summit overlooking San Luis Obispo.
Cal Poly Canyon Design Village TrailPoly Canyon Design Village
This 2.5-mile hike visits an experimental architectural village designed by Cal Poly students at the base of the Santa Lucia Mountains.
San Luis Obispo hikesMore hikes in San Luis Obispo
Explore other trails around San Luis Obispo including Morro Bay State Park and Montaña de Oro State Park.
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Distance: 2.2 miles – Elevation change: 300 feet

2 Comments on Lemon Grove Trail in San Luis Obispo

  1. Janet says:

    The Lemon Grove was recently replanted by Leadership SLO Class 22. Soon enough, that unimpressive grove will be filled with beautiful fruit.

  2. laebrown says:

    Very neat trail! Love that it was built by Boy Scouts and AmeriCorp – they did a great job and it will please walkers, trail runners, and mountain bikers alike. Please be sure to wear a bell if you’re out biking, so that hikers know to get out of your way. :-) Very easy 2-miler that’ll get your heart going without wearing you out.

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