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United States
California
San Luis Obispo County
San Luis Obispo

Double Morro Challenge (Bishop Peak and Cerro San Luis Obispo)

Routes
Hiking trails & Routes
United States
California
San Luis Obispo County
San Luis Obispo

Double Morro Challenge (Bishop Peak and Cerro San Luis Obispo)

Hard

2.8

(9)

35

hikers

Double Morro Challenge (Bishop Peak and Cerro San Luis Obispo)

03:08

8.86km

630m

Hiking

Embark on the Double Morro Challenge, a difficult 5.5 miles (8.9 km) hike that tests your endurance with a significant 2068 feet (630 metres) of elevation gain. This route takes you up two of San Luis Obispo's iconic 'Nine Sisters' peaks, Bishop Peak and Cerro San Luis Obispo, offering varied…

Last updated: April 23, 2026

Tips

Includes a segment that may be dangerous

A part of this route comprises technical, difficult, or hazardous terrain. Specialist equipment and prior experience may be required.

After 3.08 km for 147 m

Waypoints

A

Start point

Get Directions

1

20 m

Cerro San Luis Natural Reserve Trailhead

Highlight • Trail

You can find an informative poster at the beginning of the adventure. From this point you have a beautiful panoramic view of the mountain.

Tip by

2

2.67 km

Views of Bishop Peak

Highlight • Viewpoint

Cerro San Luis Fire Road offers a wonderful views of Bishop Peak. A spectacular volcanic green plug that belongs to the Nine Sisters.

Tip by

3

3.06 km

Cerro San Luis Summit

Highlight • Summit

Standing at 1,292 feet the summit of Cerro San Luis offers panoramic views of Bishop Peak and the rest of the SLO area. One of the Nine Sisters of volcanic peaks that run between Morro Bay and San Luis Obispo.

Tip by

5.91 km

Saint Anne Catholic Church of the Byzantine Rite

Place Of Worship

6.42 km

Community Baptist Church

Place Of Worship

6

8.81 km

Bishop Peak

Highlight • Summit

The views from the tallest peak of the Nine Sisters makes the effort worthwhile. You can see the chain of similar peaks along the Morro Bay.

Tip by

B

8.86 km

End point

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Way Types & Surfaces

Way Types

4.91 km

2.22 km

1.05 km

537 m

147 m

Surfaces

4.75 km

2.29 km

1.41 km

254 m

128 m

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Elevation

Elevation

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

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Weather

Powered by Foreca

Today

Sunday 12 July

26°C

15°C

31 %

Additional weather tips

Max wind speed: 20.0 km/h

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Frequently Asked Questions

How long does it typically take to complete the Double Morro Challenge?

The Double Morro Challenge is a demanding hike that combines two prominent peaks. On average, hikers can expect to spend around 3 hours and 8 minutes on the trail to complete the full route, depending on their pace and how long they spend enjoying the views.

Where can I park and access the trailheads for this challenge?

The route for the Double Morro Challenge typically starts from the Cerro San Luis Natural Reserve Trailhead. Parking is generally available at the reserve. For Bishop Peak, one common access point is from Highland Drive, which offers a different approach to that peak.

Are dogs allowed on the Double Morro Challenge trails?

Yes, both Bishop Peak and Cerro San Luis Obispo trails are generally dog-friendly. However, it's always best to keep your dog on a leash and ensure you clean up after them. Given the challenging nature and steep sections, especially on Bishop Peak, make sure your dog is fit enough for the hike and bring plenty of water for them.

What is the best time of year to hike the Double Morro Challenge?

The best time to tackle this challenge is typically during the spring or fall. Spring offers vibrant wildflowers and milder temperatures, while fall provides pleasant weather before the winter rains. Summers can be very hot and exposed, so if hiking then, start early and bring ample water and sun protection. Winter can bring rain, making some sections muddy or slippery.

Are there any permits or entrance fees required to hike in the Cerro San Luis Natural Reserve?

No, there are generally no permits or entrance fees required to hike the trails within the Cerro San Luis Natural Reserve or for Bishop Peak. These trails are publicly accessible, but always respect local regulations and leave no trace.

What kind of terrain should I expect on the Double Morro Challenge?

You'll encounter a variety of terrain. Cerro San Luis features a mix of smooth fire roads and rocky single track, with some steep sections. Bishop Peak, being the highest of the Nine Sisters, is known for its shorter but steeper climb, with dirt trails that can be exposed, and a rocky summit that often requires scrambling over large boulders for the final approach. Good grip on your shoes is highly recommended.

What are the key viewpoints and landmarks along the route?

This challenge offers incredible panoramic views. From Cerro San Luis Summit, you'll see the Central Coast, San Luis Obispo, and other 'Nine Sisters' peaks, including Views of Bishop Peak. From Bishop Peak, you can spot Cal Poly, downtown San Luis Obispo, Cerro San Luis, Laguna Lake, and the Santa Lucia Mountains. The trails also wind through oak groves and meadows.

Does this route intersect with other well-known paths?

Yes, the Double Morro Challenge route utilizes several established trails. You'll find yourself on sections of the Cerro San Luis Fire Road, the scenic Rock Garden trail, the Perimeter Trail, Baby Rock Garden, and the Lemon Grove Loop, offering a diverse hiking experience.

Is the Double Morro Challenge suitable for beginners or families with young children?

Given its 'difficult' rating and the sustained elevation gains, especially the steep and rocky sections of Bishop Peak, this challenge is not recommended for beginners or young children. It's a demanding hike best suited for experienced hikers looking for a substantial workout. For a less strenuous option, consider hiking just one of the peaks, like Cerro San Luis, which has more moderate sections.

What should I bring for this hike, especially considering the exposure?

Due to exposed sections on both peaks, especially Cerro San Luis, it's crucial to bring plenty of water, sun protection (hat, sunscreen), and appropriate layers. Sturdy hiking shoes with good grip are essential for the steep and rocky terrain. Snacks, a first-aid kit, and a charged phone are also highly recommended.

What makes the Double Morro Challenge a unique hiking experience?

This challenge is unique because it allows you to conquer two of the iconic 'Nine Sisters' volcanic peaks in one go, offering diverse terrain and unparalleled panoramic views of the Central Coast. It's a significant physical challenge that rewards hikers with a comprehensive perspective of San Luis Obispo's natural beauty and is part of a local tradition, sometimes linked to the 'Tri-Tip Challenge'.

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