Mammoth Lakes, California to Wild Willie Hot Springs

This route is considered difficult for touring cyclists. While much of it is on paved roads with moderate rolling hills, the final 1 to 1.5 miles to the hot springs parking lot is an unpaved, rough dirt road. This section can be bumpy, have potholes, and may be sandy, making it challenging for bikes with narrow tires. The high altitude of the Mammoth Lakes area also adds to the physical demand.

For the paved sections, a standard touring bicycle is fine. However, due to the rough, unpaved dirt road leading to the hot springs parking, a mountain bike or a touring bike equipped with wider, more robust tires (at least 2.4 inches recommended) would be significantly more comfortable and capable. Cyclists on traditional touring bikes might find themselves walking this final segment.

The cycling portion of this route is approximately 43.5 kilometers (27 miles) and typically takes around 3 hours to complete one-way, not including time spent at the hot springs or for breaks. Remember to factor in the additional short walk from the parking area to the hot springs themselves.

The route features a mix of terrain. You'll start on paved roads, including a stretch of US-395 (which has a wide shoulder) and the generally low-traffic Benton Crossing Road, known for its rolling, mellow hills. The most significant change is the final 1 to 1.5 miles, which is an unmarked, rough dirt road with potholes and potentially sandy sections. From the parking area, it's a short 0.25 to 0.3-mile walk on a well-maintained gravel path or boardwalk to the hot springs.

Yes, the route offers picturesque Eastern Sierra scenery. As you cycle, you'll enjoy spectacular views of the Sierra and Mount Morrison, alongside rolling hills and sagebrush. You can also expect views of the Glass Mountains, the Owens River, and Crowley Lake in the distance. The journey begins near the Mammoth Lakes Welcome Center, and the destination, Wild Willy‘s Hot Springs, provides stunning views from the natural pools.

The best time to cycle this route is generally from late spring through early fall when the weather is mild and the roads are clear of snow. Winter conditions can make the unpaved access road impassable and the hot springs may be less accessible. Always check local weather and road conditions before you go.

Due to its 'difficult' rating, the mixed terrain, and the challenging unpaved section, this route is generally not recommended for beginner cyclists or young children on touring bikes. The high altitude also adds to the challenge. More experienced cyclists with appropriate bikes will find it more enjoyable.

There is a parking area at the end of the unpaved dirt road, approximately 0.25 to 0.3 miles from the hot springs themselves. This is where you will leave your bike and continue on foot to the pools.

While dogs are generally allowed on public roads and many trails in the Eastern Sierra, it's important to keep them on a leash, especially near wildlife. At Wild Willy‘s Hot Springs, dogs are typically permitted but must be kept under control and on a leash. Always pack out any waste.

No, Wild Willy‘s Hot Springs are natural, free-to-access geothermal pools. You do not need a permit or to pay any entrance fees to visit them.

Yes, the route passes through sections of several local paths, particularly near Mammoth Lakes. You may encounter parts of the Town Loop (203 South), Shady Rest Trail Network, and the Shady Rest - Visitor Center Trail as you begin your journey.