About Lost Boys Jiu-Jitsu & Muay Thai
Welcome to Lost Boys Jiu-Jitsu & Muay Thai, where we are dedicated to providing the highest quality Brazilian Jiu-Jitsu training in a supportive, family-friendly environment. Our mission is to empower students of all ages and skill levels through the art of BJJ, fostering physical fitness, mental resilience, and personal growth.
Our Philosophy
At Lost Boys Jiu-Jitsu & Muay Thai, we believe that Jiu-Jitsu is more than just a martial art—it's a way of life. Our approach combines technical excellence with practical application, ensuring that our students develop skills that work both on and off the mats.
Whether you're looking to compete at the highest levels, learn self-defense, or simply get in the best shape of your life, our expert instructors are here to guide you every step of the way.
Meet Our Instructors

John Smith
Head Coach - Black Belt
15+ years of experience competing at the highest levels.

Maria Rodriguez
Kids Program Director - Brown Belt
Specializes in teaching children of all ages and abilities.

David Chen
Competition Coach - Black Belt
Multiple-time IBJJF champion with a focus on competitive training.
Class Schedule
We offer a variety of classes for all skill levels, from beginners to advanced practitioners. Join us at a time that works for your schedule!
Membership Options
Invest in your health, fitness, and self-defense skills with our flexible membership options. Join our community today and start your Jiu-Jitsu journey!
Basic
Perfect for beginners looking to start their Jiu-Jitsu journey.
- Unlimited Fundamental Classes
- Access to Open Mat Sessions
- Free Uniform (Gi)
- Monthly Progress Assessments
Premium
Our most popular option with full access to all classes and amenities.
- Unlimited Access to All Classes
- Access to Open Mat Sessions
- Free Uniform (Gi) + Rashguard
- Monthly Progress Assessments
- Competition Training
- One Private Lesson Per Month
Family
Train together as a family with our comprehensive package.
- Access for 2 Adults + 2 Children
- Unlimited Access to All Classes
- Free Uniforms (Gi) for All Members
- Monthly Progress Assessments
- Competition Training
- Discounted Private Lessons
Other Options
What Our Students Say
Hear from our community about how training at our academy has impacted their lives.
Kerry Teuila Bondi-Donohue
"My son has dedicated the past two and a half years to training at Lost Boys. During this time, he's not only emerged victorious from multiple tournaments, but he's also undergone a remarkable transformation. His physical strength has surged, his skills have significantly improved, and his self-assurance has grown exponentially. We've explored nearly every gym in the area, but none of them compare to Lost Boys. The coaches at Lost Boys are more than just trainers; they're mentors who understand the unique needs and aspirations of young athletes. They have a special ability to connect with kids on a personal level, making each athlete feel valued and important. They push them to be their best, but they also know how to encourage and motivate. The entire competition team at Lost Boys is incredibly diverse and talented. They're constantly pushing each other to improve, learning new techniques every day. It's inspiring to see the camaraderie and support among the team members. The coaches at Lost Boys have created a supportive and inspiring environment where my son can thrive. It's more than just a gym; it's a community that has helped shape him into the strong, confident athlete he is today"
Robert Dark
"From the moment I walked into the door to inquire about the kids class, I knew I was in the right place. The instructors were able to naturally bond with my son right away. They know how to get down on his level, be a positive influence, and make Jiu-jitsu fun. It’s easy to tell they’re passionate and love teaching children. My kid is always smiling and on the days he has jiu-jitsu, he’s begging and pleading with me to take him early so he’s not late. It’s unreal. I recommend all kids learning Jiu-jitsu especially since my son experienced bullying all through preschool. He used to be afraid to compete with other kids in sports, and hated going to school. Now he loves school and loves competing, he’s a 100% confident. I feel relief that I don’t have to worry about him on the school playground or in the bathroom. It’s been life changing, and it’s not just my son. I have seen it with every kid that’s come through their door. My advice to the parents: bring your kid, then sit down and be quiet, and let the professionals do their thing. After class tell your child you’re proud of them for coming, and that’s it. Let your child go out there get comfortable, and eventually they’ll spread their wings and fly. These coaches know what they’re doing, and too often as parents we yell out because we’re experiencing feelings that the child may not even be feeling in their world. Then when we yell out the child feels like he or she is disappointing us, which makes it not as fun for the child, if it’s not fun they’re not going to want to keep coming back. Trust me these instructors know what they’re doing, as a parent, you’re not going to help, most likely you’ll just mess it up. Anyway, hope this helps anyone considering Jiu-jitsu for their child."
Tyra B
"Great great environment, wonderful kids classes and, adult classes. A family feel, nicest people in there. If your considering jiujitsu, muay thai, or mma you will love coming here. Beginners get wonderful support and warm welcomes!!"
WornPiece Studios
"Lost Boys BJJ houses some of the best teachers and masters of BJJ that Humboldt has to offer, and if their talent is any indication, the world. The staff are knowledgeable, passionate, and honest to goodness amazing folk. I'm thrilled to have learned from these amazing people, on not just the art behind BJJ, but compassion and genuine connection and help understand the sport. Brian and CO have created a robust and beautiful community. I'm honored to have passed through and have gleamed more than I hoped from this gem of a gym. I hope to see you all soon! "
Contact Us
Have questions or ready to start your Jiu-Jitsu journey? Get in touch with us today!
Send Us a Message
Our Location
Address
5000 Valley W Blvd #8, Arcata, CA 95521, USA
Phone
Hours
Mon-Fri: 6:00 AM - 9:00 PM
Sat: 9:00 AM - 2:00 PM
Sun: 10:00 AM - 12:00 PM