The Mt Shasta Picnic: A Fierce Swim-Bike-Mountaineer Challenge
The Mt Shasta Picnic is a 43.5-mile swim-bike-mountaineer triathlon that tests both physical endurance and mountain savvy. Swim across pristine Siskyou Lake, bike through Mt Shasta City, and ascend over 7,000 vertical feet to the summit in a unique loop challenging even seasoned adventurers.
Trail Tips
Master Snow Travel Techniques
Proficiency with self-arrest and navigating snowy slopes is essential for safely summiting Mt Shasta. Train in advance and consider a guide if you're unsure.
Plan for Changing Weather
Mt Shasta’s conditions can shift rapidly; use reliable forecasts and check the avalanche center before heading out.
Bring a Support Crew for the Swim
Having someone accompany you during open water swims from behind improves safety without providing direct aid.
Cache Gear Strategically
If attempting self-supported, plan gear caches thoughtfully to minimize load and maintain pace throughout transitions.
Activity Level
Requires exceptional aerobic capacity, muscular endurance, and acclimatization to altitude
Photography Tips
Best Times
Best Viewpoints
- The summit offers sweeping panoramic shots of the Siskiyou wilderness
- Bunny Flat Trail provides framed views of the alpine forest and aspen clusters
The Mt Shasta Picnic: A Fierce Swim-Bike-Mountaineer Challenge
Experience a route where land and water converge into a singular test of endurance: the Mt Shasta Picnic. This intense, 43.5-mile swim-bike-mountaineer-bike-swim triathlon flips traditional formats with an opening and closing swim across Siskyou Lake, framing a relentless ascent of Mt Shasta’s summit in between. Starting at the green gate of Parking Area Siskyou Lake Beach, you’ll descend a sloping trail to plunge into the lake’s cool waters, swimming 1.2 miles to Cable Beach. The lake’s surface pushes back against you like a living force, testing resolve before you mount your bike.
From Cable Beach Parking, your pedals push through Mt Shasta City, climbing 15 miles and nearly 2,800 vertical feet to Bunny Flat. Here, the mountain itself demands respect—steep, alpine terrain with 7,200 feet of gain awaits over 5.3 miles of mountaineering. Snow travel and self-arrest skills are non-negotiable on this portion. The summit stands sharply at 14,180 feet, a fierce crown over the Siskiyou wilderness.
The descent retraces your footsteps back to Bunny Flat before sliding 15 miles downhill on two wheels to Cable Beach Parking. Then the lake calls one last time—another 1.2-mile swim across Siskyou Lake back to the green gate finish line. With total vertical gain over 11,000 feet, this route blends aquatic challenge, urban pedal power, and high alpine grit.
Preparation is key. Check mountain and weather conditions via Mountain Forecast and Shasta Avalanche Center. Local bike and mountain gear rentals at The Fifth Season can outfit your expedition. While self-supported attempts are possible, a support crew during the swims enhances safety while keeping the spirit intact.
This is a journey against nature’s fierce self, demanding fitness, skill, and respect at every turn. It’s an adventure where every stroke, turn, and step puts you face to face with California’s raw elevations and waters that dare you forward. Tackle the Mt Shasta Picnic if you seek an experience where thrill meets strategy, and the mountain holds nothing back.
Recommended Gear
Mountaineering Boots
Rigid boots capable of snow travel and crampon compatibility are mandatory for the summit.
spring specific
Wet Suit or Swim Safety Gear
Necessary for hypothermia prevention during the open water lake swims.
summer specific
High-Performance Mountain Bike
Strong brakes and reliable tires to manage city roads and steep alpine climbs/descents.
summer specific
Avalanche Safety Kit (Beacon, Probe, Shovel)
Critical for detecting and surviving avalanche incidents on snow-covered slopes.
spring specific
Seasonal Guide
spring Hiking
Spring offers snow-covered alpine terrain requiring solid snow skills, while lower elevations warm enough for biking and swimming. Watch for wet, unstable snow and avalanche risk.
Best For:
- mountaineering
- lower elevation biking
- early-season swim
Challenges:
- snowpack instability
- variable weather
summer Hiking
Summer provides the clearest window for an ascent with stable snowmelt, accessible summit routes, and pleasant lakeside swims. Early starts help avoid afternoon storms.
Best For:
- full route attempts
- clear summit access
Challenges:
- high temperatures at lower elevations
- possible afternoon thunderstorms
fall Hiking
Fall colors enhance the ride through Mt Shasta City and along the lake, but expect fresh snow at higher elevations. Plan accordingly for colder, shorter days.
Best For:
- bike and swim focus
- early snow on summit
Challenges:
- early snowpack
- shorter daylight
winter Hiking
Winter transforms Mt Shasta into a snowy fortress. The route becomes far more technical, with lake swims impractical. Avalanche risk is significant, and proper equipment and experience are critical.
Best For:
- ski mountaineering
Challenges:
- heavy snow
- high avalanche risk
- lake frozen or hazardous
Frequently Asked Questions
Is prior mountaineering experience required for the Mt Shasta Picnic?
Yes. The summit climb involves snow travel and self-arrest skills, which require prior training and experience. Attempting without these can be dangerous given the high altitude and potential snow conditions.
Can this route be completed unsupported?
Technically yes, but the supported format is safer, especially during swims. If going unsupported, careful gear caching and a detailed plan are essential.
What is the best time of year to attempt the Mt Shasta Picnic?
Late June through early September typically offers the most stable mountain conditions and open water swimming. Earlier or later in the year can mean snow hazards or unsafe swim conditions.
How to handle sudden weather changes on Mt Shasta?
Constant weather monitoring before and during the trip is crucial. Carry layered clothing, emergency shelter, and be prepared to turn back if conditions deteriorate.
Is there cell service along the route?
Cell reception can be spotty, especially at higher elevations. Plan communication and safety protocols accordingly.
Where can I rent gear near Mt Shasta?
The Fifth Season in Mt Shasta carries mountain gear and bikes ideal for tackling the route.
Local Insights
Hidden Gems
- "Cable Beach offers quiet lakefront views rarely crowded even in summer."
- "Bunny Flat Trailhead’s aspen groves provide dappled light and chance for wildlife sightings."
Wildlife
- "Look for Steller’s Jays hustling through the forest canopy and occasionally mountain goats sprinting near the summit."
History
"Mt Shasta holds spiritual significance for several Native American tribes, with cultural ties extending back millennia. The mountain’s volcanic origins shape much of the regional landscape and ecology."
Nearby Experts
Rogue River Fishing Day Trip
Hook your line and immerse yourself in the beauty of Oregon's Rogue River with a private fishing adventure. Perfect for anglers seeking solitude, scenery, and excellent fishing opportunities in Merlin,...
Kayak the Trinidad Coastline
Discover the beauty of California's coast with a private kayak trip along the Trinidad shoreline. Perfect for nature lovers and adventure seekers, this experience offers stunning views, wildlife encounters, and personalized guidance. Keep reading to learn how to make the most of your kayaking...