Highlight • Summit
Hiking
5.0
(1)
Islay Hill Summit is a distinctive volcanic cone and the southernmost peak of the renowned Nine Sisters, a chain of ancient volcanic plugs stretching across San Luis Obispo County in central California. Standing at an elevation of 236 meters (776 feet), this prominent natural monument offers expansive views and is a significant geological feature approximately four miles southeast of downtown San Luis Obispo. It is a key landmark within the scenic landscape of the Morros, which extend from Morro Bay to Islay Hill.
Visitors consistently praise the panoramic views from Islay Hill Summit, which encompass the Santa Lucia Mountains, the sprawling vineyards of Edna Valley, and the city of San Luis Obispo, along with glimpses of other Morros like Cerro San Luis and Bishop Peak. Hikers often highlight its accessibility and the rewarding sense of achievement from reaching the top, making it a popular choice for those seeking a moderate outdoor adventure with stunning photographic opportunities.
Before embarking on your journey to Islay Hill Summit, it's helpful to know that the trailhead is conveniently located in a residential cul-de-sac southwest of the hill. The trail itself is considered one of the easier and more beginner-friendly routes among the Nine Sisters, typically involving a moderate 1.8-mile round-trip hike with an elevation gain of about 550 feet. Dogs are welcome on the trail, provided they are kept on a leash, making it a great option for dog friendly hikes near San Luis Obispo.
The best time to hike Islay Hill Summit is generally during the cooler months or early mornings and late afternoons to avoid the midday heat, though it's accessible year-round. Its relatively easy accessibility makes it suitable for a range of hikers, including families, and many consider it a family friendly option. Beyond the summit trail, the surrounding Islay Hill Open Space and Islay Hill Park at its base offer additional recreational opportunities for those looking to extend their visit.
Reaching the summit of Islay Hill offers a truly immersive experience. Hikers often describe the unique wooden pole with iron climbing pegs at the very top, which, when ascended, provides an unparalleled 360-degree vantage point. The diverse landscapes visible from this viewpoint, from agricultural lands to distant mountain ranges, create memorable moments and opportunities to spot local wildlife.
Whether you're looking for a quick, rewarding ascent or a scenic walk with your canine companion, Islay Hill Summit provides a fantastic outdoor experience. Explore the various routes available to the summit and plan your visit using komoot to discover detailed trail information, including the Islay Hill Summit hike difficulty and other natural features along the way.
Tips
July 25, 2023
Hiking

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Nearby routes
Best routes near Islay Hill Summit

9
hikers
4.09km
01:13
130m
130m
Embark on the Islay Hill Trail for an easy hike that spans 2.5 miles (4.1 km) with a total elevation gain of 412 feet (126 metres). This loop typically takes around 1 hours and 13 minutes to complete. As you ascend the grassy slopes, you will experience an open atmosphere, leading to expansive views from the summit. Keep an eye out for the distinctive cow statue at the peak, a unique landmark on this route.
When planning your visit, note that the trailhead is conveniently situated within a residential area near San Luis Obispo. The trail is largely exposed, so remember to bring water and consider the weather conditions, especially on warmer days. Dogs are welcome to join you on the hike, but please ensure they remain on a leash throughout the route.
This trail takes you through the scenic Islay Hill Open Space, offering a chance to see the Santa Lucia Mountains and the vineyards of Edna Valley spread out below. In spring, the hillsides come alive with vibrant wildflowers, adding a splash of color to your journey. The panoramic vistas from Islay Hill Summit make this route a local favorite for appreciating the regional landscape.

19
hikers
3.47km
01:04
140m
140m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

7
hikers
6.03km
01:45
160m
160m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
Details
Informations
Elevation 190 m
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Monday 17 August
23°C
16°C
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Max wind speed: 19.0 km/h
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The trailhead for Islay Hill Summit is situated in a residential cul-de-sac southwest of the hill. While there is parking available in this area, it can be limited, especially during peak times. It's advisable to arrive early, particularly on weekends or holidays, to secure a spot.
Islay Hill Summit is generally considered one of the easier hikes among the Nine Sisters. It features a moderate 1.8-mile round-trip trail with an elevation gain of about 550 feet, making it suitable for a range of hikers, including beginners and those looking for a less strenuous outdoor experience.
Yes, dogs are permitted on the Islay Hill Summit trail. However, for the safety and enjoyment of all visitors and local wildlife, dogs must be kept on a leash at all times.
At the very top of Islay Hill Summit, hikers will discover a distinctive ten-foot-tall wooden pole equipped with iron climbing pegs. Ascending this pole provides an unparalleled 360-degree panoramic view of the surrounding landscape, including the Santa Lucia Mountains, Edna Valley vineyards, and other Morros.
Yes, Islay Hill Summit is often considered a family-friendly hike due to its moderate difficulty and relatively short length. The rewarding views from the top can be a great motivator for younger hikers, and the surrounding Islay Hill Park offers additional recreational opportunities.
Islay Hill Summit is located approximately four miles southeast of downtown San Luis Obispo. While there are no immediate cafes or pubs directly at the trailhead, a short drive into San Luis Obispo will provide a wide array of dining options, from casual cafes to restaurants.
Islay Hill is a significant geological feature as it is the southernmost of the Nine Sisters, a chain of ancient volcanic plugs in San Luis Obispo County. It is a dome-shaped volcanic plug formed approximately 20 to 25 million years ago from solidified magma, consisting of dacite, trachyte, and rhyolite rocks.
While direct public transport to the trailhead of Islay Hill Summit may be limited, local bus services in San Luis Obispo can get you relatively close. It's recommended to check the San Luis Obispo Regional Transit Authority (SLORTA) schedules for routes that serve the areas near the hill, though a final short walk or ride-share might be necessary.
Given the moderate nature of the trail, comfortable hiking shoes or sturdy athletic footwear are recommended. Layered clothing is often best, as temperatures can vary, especially between morning and afternoon. Don't forget sun protection like a hat and sunscreen, and bring plenty of water.
While Islay Hill is generally less crowded than some of the more popular Morros, if you're seeking even more solitude, exploring other trails within the broader San Luis Obispo County might be an option. However, Islay Hill's accessibility and views make it a unique and worthwhile destination.
Yes, Islay Hill Summit is accessible year-round, including winter. Hiking during the cooler months can offer pleasant temperatures and potentially clearer views. Be mindful of any recent rainfall, as trails might be muddy, and always check local weather conditions before heading out.
The area around Islay Hill Summit is home to various local wildlife. Hikers might spot common birds, small mammals like rabbits or squirrels, and occasionally deer. Keep an eye out for raptors soaring overhead, taking advantage of the elevated views.