C2C Training: Etiwanda, Cucamonga, Bighorn & Ontario (~18mi/6,020ft)

Join us for the final hike in our Cactus to Clouds Training Series, a structured progression of local hill workouts and mountain hikes designed to build the endurance, climbing strength, pacing, and resilience needed for a successful C2C ascent.

This four-peak route starts at Icehouse Canyon and climbs through Icehouse Saddle to Cucamonga Saddle before continuing to Etiwanda and Cucamonga Peaks. From Cucamonga Saddle, we’ll take the steep ridge up to Bighorn Peak, continue to Ontario Peak, then return through Kelly Camp and Icehouse Saddle to the trailhead.

The route includes repeated climbs, rocky terrain, and a steep, loose section approaching Bighorn.

Route Stats:
Distance: ~18 miles round trip
Elevation gain: 6,020 ft
Estimated time: 9-10 hours

Who This Hike Is Suited For:

• Comfortable with 15+ mile routes
• Comfortable maintaining a steady climbing pace on long ascents
• Comfortable fueling and hydrating during extended efforts
• Experience hiking above 8,000 ft preferred

Group Size & Admission Policy:
Group size is limited. All hikers will initially be placed on the waitlist. Admission is based on pace compatibility, experience with sustained elevation routes, and overall fit with the objectives of the training series.

First-Time Participants:
If you have not previously hiked with us on a comparable route, please message the organizer with:
1. Date of your most recent 15+ mile hike
2. Distance, elevation gain, moving time, and total time
3. Your average moving pace
4. Comparable peaks or routes completed
Submission of this information does not guarantee admission. Admission from the waitlist is contingent on meeting the above criteria and available group capacity.

Trailhead: Icehouse Canyon Trailhead
Parking: Icehouse Canyon Parking Lot. Adventure Pass required.
Route Map: https://www.alltrails.com/explore/trail/us/california/etiwanda-cucamonga-bighorn-ontario-peak-via-icehouse-canyon-trail?u=i&sh=pxabuh

Essentials:
• Water, 3.5- 4L
• Electrolytes
• Snacks/fuel
• Hat, sunscreen, sunglasses
• Hiking poles recommended, especially for the descent
• Offline maps/navigation recommended

Note on Punctuality & RSVP: Please be on time — we’ll wait up to 5 minutes past the start. If you’re running late, you can post your ETA in the event discussion, but the group may still begin without you. If your plans change, please update your RSVP — it helps us know who to expect on the trail.

Disclaimer & Safety Notice: Not So Casual Hikes are challenging outings designed for hikers in strong shape who know their limits and show up prepared. Organizers are volunteers—not guides—and cannot be responsible for your pace, navigation, or safety. We hike at a steady pace and the group may spread out. Please be prepared to navigate independently if you fall behind. We'll aim to regroup at major trail junctions when possible. By signing up, you accept full responsibility for your fitness, gear, hydration, and navigation, and agree to hold harmless the Organizer, Co-Organizer, Assistant Organizers, and fellow participants for any incidents or injuries. Participation also means you agree to Meetup’s Terms of Service. Hiking carries inherent risks, including trip/fall injuries, bee stings, poison oak, ticks, snakes, coyotes, or mountain lions. Be prepared for sun exposure, heat, or marine layer conditions depending on the day.