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Lost Boys Jiu-Jitsu & Muay Thai

5 ★★★★★ 17 Google reviews · Kickboxing gym in Arcata, California

Kickboxing gym Kids & teens Competition team

Plan your first class

  • Kids & teen classes kids and teen kickboxing classes (ages 7–14) — built around confidence, focus, and fun
  • Sparring sparring and partner work for members who want it — always optional, eased in gradually, with the coach controlling the contact
  • Competition team a competition team for members who want to test themselves in the ring — amateur kickboxing, muay thai, or K-1
  • Today see hours ·
  • Website & schedule lostboysbjj.com — book classes and see the live schedule
  • Phone (707) 388-3111

Hours

Monday 9 AM–12 PM, 5–9:30 PM
Tuesday 5–8:30 PM
Wednesday 9 AM–12 PM, 5–9:30 PM
Thursday 5–8:30 PM
Friday 4–8:30 PM
Saturday 10 AM–2 PM
Sunday Closed

Hours shift for holidays and class-schedule changes — worth a quick check before a special trip.

The classes they run

Kickboxing classes on the schedule at Lost Boys Jiu-Jitsu & Muay Thai, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🧒 Kids Kickboxing 17 mentions

“From the moment I walked into the door to inquire about the kids class, I knew I was in the right place.”

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🤜 Sparring

“I was travelling thru and dropped in for an open mat training.”

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🏆 Competition Team 3 mentions

“During this time, he's not only emerged victorious from multiple tournaments, but he's also undergone a remarkable transformation.”

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🦵 Muay Thai 2 mentions

“If your considering jiujitsu, muay thai, or mma you will love coming here.”

All gyms that run muay thai →

Other martial arts here

Kickboxing gyms are usually multi-discipline. Here's what else members mention training under the same roof at Lost Boys Jiu-Jitsu & Muay Thai — mined from their reviews and the gym's own info.

🦵 Muay Thai 2 mentions

“If your considering jiujitsu, muay thai, or mma you will love coming here.”

Other gyms that also teach muay thai →

🏟️ MMA

“If your considering jiujitsu, muay thai, or mma you will love coming here.”

Other gyms that also teach mma →

🥋 Brazilian Jiu-Jitsu 12 mentions

“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.”

Other gyms that also teach brazilian jiu-jitsu →

🛡️ Self-Defense

“If you want your kids to learn self control and self defense, this is the place to be.”

Other gyms that also teach self-defense →

Disciplines are mined from reviews and the gym's own info — they show what members have trained, not a formal class guarantee. If you specifically want muay thai, boxing, or MMA alongside your kickboxing, confirm the current schedule with the gym.

What members say

The things reviewers bring up again and again across 17 Google reviews — in their own words.

🏆 active competition / fight team 3 mentions

“During this time, he's not only emerged victorious from multiple tournaments, but he's also undergone a remarkable transformation.”

🤝 friendly, family gym 5 mentions

“The coaches at Lost Boys have created a supportive and inspiring environment where my son can thrive.”

From the reviews

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.

★★★★★ — Robert, Apr 2019

I took a few Jiu Jitsu classes at Lost Boys! Its a humble dojo, kind of a hidden gym!. I picked up several new techniques.Although I didn't take the Muay Thai class. I like this place a lot! if your in the area.. check them out!

★★★★★ — Aye-1, Feb 2021

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.

★★★★★ — Kerry, Nov 2024

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!!

★★★★★ — Tyra, Mar 2019

Excerpts from public Google reviews. Read all 17 reviews →

Your first kickboxing class at Lost Boys Jiu-Jitsu & Muay Thai

Nervous about walking into a kickboxing gym for the first time? Almost everyone is, and good coaches expect beginners to come through the door. Here's what to know. What to expect: a typical first class is a warm-up, then drilling the basics — stance, footwork, and punches and kicks on pads or a heavy bag — not hard sparring. Go at your own pace and rest whenever you need to; no one will bat an eye. What to wear: comfortable athletic clothes you can move and sweat in, and supportive trainers. What to bring: water, and hand wraps and gloves if you have them — many gyms lend loaner gloves for a first class, so it's worth asking when you call. As you keep training you'll add your own gloves and wraps (and shin guards once you start sparring). Sparring is optional and eases in gradually, once your basics are solid. Arrive 10–15 minutes early to sign a waiver and meet the coach. It gets easier fast — most people feel far more at home by their third class.

Kickboxing is a contact sport. Warm up, pace yourself, listen to your coaches, and if you have any injuries or health concerns, mention them before class and check with a doctor if you're unsure.

Where to find Lost Boys Jiu-Jitsu & Muay Thai

5000 Valley W Blvd #8, Arcata, CA95521

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Listing verified July 2026 from public business records and member reviews. Something out of date? Report a correction. Own this gym? Claim your listing — it's free.