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Routes
Hiking trails & Routes
United States
California
Ventura County

Sespe River Trail to Willett Hot Springs

Moderate

3.0

(20)

43

hikers

Sespe River Trail to Willett Hot Springs

04:38

16.4km

290m

Hiking

Embark on a moderate hike along the Sespe River Trail to Willett Hot Springs, a journey spanning 10.2 miles (16.4 km) with an elevation gain of 941 feet (287 metres). You can expect to spend around 4 hours and 38 minutes exploring the diverse and picturesque scenery of the Sespe Wilderness. The trail takes you through varied terrain, from sandy sections to rolling hills, all framed by dramatic canyon walls. Keep an eye out for the striking white granite outcroppings known as Piedra Blanca near the trailhead, and look forward to a relaxing soak in the natural hot springs at your destination.

This route is suitable for a challenging full-day outing or a comfortable overnight backpacking trip. Be prepared for multiple creek crossings along the Sespe Creek, which can range from simple rock-hopping to wading through knee-deep water. While the trail is generally accessible, always check local regulations for the Sespe Wilderness regarding permits or any seasonal closures before you head out. Planning ahead ensures a smooth and enjoyable experience.

The Sespe River Trail follows the Sespe Creek, which holds the distinction of being a designated National Wild and Scenic River. This designation highlights its unique ecological and scenic value within the rugged wilderness. The journey offers a chance to connect with a pristine natural environment, culminating in the unique reward of the Willett Hot Springs. It's a notable trail in the region for its blend of wilderness challenge and natural relaxation.

Last updated: April 23, 2026

Tips

Your route passes through protected areas

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Waypoints

A

Start point

Get Directions

1

2 m

Sespe River Trailhead

Highlight • Trail

From this parking spot you can hike the Sespe River Trail which leads you through the Sespe Wilderness to the Willet Hot Springs. Beside the trail you find several camping sites and stunning nature. Make sure you take everything with you that you need during a two to three day hike without any public entities.

Tip by

2

6.81 km

Bear Canyon

Highlight • Canyon

3

8.31 km

Kerr Spring

Highlight • Natural

B

16.4 km

Willett Hot Springs

Highlight • Natural Monument

Deep within the Sespe Wilderness is Willett Hot Springs, a natural hot spring surrounded by nature. The Willett Camp backcountry campsite is nearby if you decide to spend the night. Highway 33, which gives access to the trail, has been closed since winter 2023, but the hot springs remain open. For more information on road closures, visit fs.usda.gov/detail/lpnf/alerts-notices/?cid=stelprdb5309152

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Way Types & Surfaces

Way Types

15.6 km

723 m

< 100 m

Surfaces

16.3 km

< 100 m

< 100 m

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Elevation

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Today

Wednesday 6 May

21°C

3°C

0 %

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Max wind speed: 8.0 km/h

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Frequently Asked Questions

Where is the trailhead for the Sespe River Trail to Willett Hot Springs, and what are the parking options?

The trail begins at the Sespe River Trailhead, which is also known as Piedra Blanca Trailhead. It's located in the Los Padres National Forest. Parking is available at the trailhead, but it can fill up quickly, especially on weekends. Arriving early is recommended.

Are there any permits or fees required to hike in the Sespe Wilderness?

Yes, a valid Adventure Pass is required for parking at the trailhead in the Los Padres National Forest. These passes can often be purchased at ranger stations or local vendors. While no specific hiking permits are typically needed for day use, it's always wise to check the latest regulations with the Forest Service, especially for overnight stays.

Is the Sespe River Trail to Willett Hot Springs suitable for beginners?

This trail is generally considered moderate to difficult or strenuous, especially for the full round trip. It involves significant length, elevation changes, and multiple creek crossings. While some initial sections might be easier, it is not recommended for beginner hikers seeking an easy outing. Many consider it a challenging full-day hike or a comfortable overnight backpacking trip.

What is the terrain like on the way to Willett Hot Springs?

The terrain is varied, starting with relatively flat and sandy sections before transitioning into rolling hills with several climbs and descents. The path follows the Sespe Creek, necessitating multiple creek crossings that can range from easy rock-hopping to knee-deep wading depending on conditions. Sections also follow old roads, and you'll encounter dramatic canyon walls and lush riparian areas.

What are the main highlights along the Sespe River Trail?

The primary highlight is the destination itself, Willett Hot Springs, where you can soak in a constructed tub. Other notable features include the massive white granite outcroppings near the trailhead (Piedra Blanca), the scenic Bear Canyon, and Kerr Spring. The Sespe Creek, a National Wild and Scenic River, also offers opportunities for swimming in various holes.

What is the best time of year to hike to Willett Hot Springs?

The best time to hike is typically during the cooler, drier months, from late fall to spring (October to May). Summer can be extremely hot, making the long trek challenging. During wetter seasons, creek crossings can be more difficult due to higher water levels. Wildflowers are vibrant in spring, and autumn brings colorful foliage along the creek.

Is the trail dog-friendly?

Yes, dogs are generally allowed on the Sespe River Trail. However, they must be kept on a leash, and owners are responsible for packing out all waste. Given the length and difficulty of the trail, ensure your dog is conditioned for such a hike and bring plenty of water for them, especially during warmer periods.

Are there camping options along the trail?

Yes, numerous established and improvised campsites are scattered along the trail, many situated near the Sespe Creek. This makes it an excellent route for overnight backpacking trips. Bear Creek Camp, located about 4.4 miles from the trailhead, is a popular and scenic spot for camping.

What kind of wildlife might I encounter on the trail?

The Sespe Wilderness is home to diverse wildlife. Hikers might spot various birds, deer, and smaller mammals. There's also a possibility of encountering larger animals like bears, so it's important to be bear-aware and store food properly if camping overnight.

Does the trail intersect with other paths?

Yes, the route primarily follows the Sespe River Trail (95% of the route). It also briefly intersects with sections of the Red Reef Trail (5%), the Willet Hot Spring West Trail (5%), and the Gene Marshall-Piedra Blanca National Recreation Trail (5%).

Is the Sespe River Trail to Willett Hot Springs a loop or an out-and-back?

This trail is an out-and-back route. You will hike to Willett Hot Springs and then return along the same path to the trailhead.

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