At Sender One, our purpose is to help people discover themselves and connect with others through climbing.
Climbing
From bouldering to towering lead walls, our gyms welcome all skill levels — no experience required.
Sender City
A colorful, interactive climbing adventure for kids, families, and birthday parties.
Youth Programs
Climbing programs that help kids build confidence, strength, and community.
Yoga and Fitness
Support your climbing (and your wellbeing) with yoga and fitness classes for every body.
Training Center
The Training Center is accessible to our Youth Programs and active members only.
Inside Sender One Santa Ana
The Original Sender One
Sender One Santa Ana is where it all began. As our original location, it set the foundation for everything we do—community-driven climbing, thoughtful programs, and spaces designed to help people discover what they’re capable of.
Expansive Rope Climbing
- Expansive rope climbing terrain with walls up to 50 feet tall
- Top rope and lead climbing across varied angles and styles
- Routes designed for endurance, technique, and progression
Bouldering for Every Level
- Large bouldering areas with diverse styles and movement
- Problems for first-time climbers through advanced athletes
- Regularly updated setting to keep climbing fresh and engaging
Yoga Studio & Movement Classes
- Two dedicated yoga studios with an expansive class schedule
- Aerial classes plus a variety of yoga and movement styles
- Mobility-focused sessions to support recovery and balance
Dedicated Training Center
- Dedicated training spaces for youth competition teams and adult climbers
- Equipment and layouts that support focused, intentional training
- A hub for athletes looking to level up—at any stage of their climbing journey
Sender City: Big Adventures for Little Climbers
- Fun, colorful walls that encourage confidence and movement through play
- Age-appropriate challenges in a safe, welcoming environment
- Perfect for first-time climbers, families, and birthday celebrations
Kids Programs & Camps
- Youth classes that build confidence, coordination, and strength
- School-break and summer camps
- Programs for beginners through experienced young climbers
SNA Happenings
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Monthly Meetups














