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Extreme Power Gym

4.8 ★★★★★ 69 Google reviews · Muay thai gym in Oceanside, California

Muay Thai gym Authentic Thai Beginners welcome Kids & teens Private lessons Fight team

Authentic Thai — reviews and the gym's own info point to coaching rooted in Thailand's muay thai tradition. If lineage matters to you, ask where the coaches trained and about their kru.

No-frills martial arts school (Muay Thai boxing) for all ages with classes for adults and kids.

Plan your first class

  • Beginner-friendly all levels welcome, including total beginners — you don't need to be fit or have any experience to start
  • Kids & youth classes kids and youth muay thai classes — built around discipline, focus, and confidence
  • Private lessons private, one-on-one coaching available — a focused way to start or to work around a busy schedule; ask about availability and rates
  • Sparring & clinch sparring and clinch sessions for members ready for controlled contact — always optional and coach-supervised
  • Fight team a competition team for members who want to test themselves as amateur fighters
  • Today see hours ·
  • Website & schedule extremepowergym.com — book classes and see the live schedule
  • Phone +1 760-672-8860

Hours

Monday 4–8 pm
Tuesday 4–8 pm
Wednesday 4–8 pm
Thursday 4–8 pm
Friday 4–8 pm
Saturday Closed
Sunday Closed

Hours shift for holidays, seminars, and open-gym times — worth a quick check before a special trip.

The classes they run

Muay thai classes on the schedule at Extreme Power Gym, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🌱 Beginner Muay Thai 3 mentions

“Whether you're a beginner or an experienced martial artist, Extreme Power Gym caters to all levels.”

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🧒 Kids Muay Thai 13 mentions

“My son has been training here for almost 2 years now, and it’s been one of the best things for him.”

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Teen Muay Thai 5 mentions

“She started in the kids class in 5th grade and recently moved into the teen/adult classes as she’s starting high school.”

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👤 Private Lessons

“He has given me multiple one on one lessons through out my time there.”

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🥊 Sparring

“If you’re looking for good training, you find it here, if you’re looking for good sparring, you’ll find it here.”

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🏆 Fight Team 2 mentions

“His teaching style is a mix of coaching and mentor guiding you to become a better fighter and person.”

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🛡️ Self-Defense 2 mentions

“Whether your trying to get in shape, stay in shape, learn self defense, or have ambition to fight.”

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Other martial arts here

Muay thai gyms are usually multi-discipline. Here's what else members mention training under the same roof at Extreme Power Gym — mined from their reviews and the gym's own info.

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 BJJ, boxing, or MMA alongside muay thai, confirm the current schedule with the gym.

What members say

The things reviewers bring up again and again across 69 Google reviews — in their own words.

🧑‍🏫 expert, authentic coaching 3 mentions

“Extreme Power Gym is recognized as the go-to place for authentic Muay Thai in the area, standing out for its dedication to preserving the true essence of this ancient discipline.”

🌱 welcoming to beginners 5 mentions

“I was a bit nervous about her joining the teen/adult classes, but everyone has been so welcoming and helpful.”

🤝 no-ego, friendly gym 6 mentions

“The philosophy he instills, as well as his humble attitude make this such a great environment to learn and grow from.”

📘 real technique & fundamentals 3 mentions
🥊 legit sparring & fight team 8 mentions

“His teaching style is a mix of coaching and mentor guiding you to become a better fighter and person.”

🇹🇭 authentic Thai roots 5 mentions

“Between the authentic Thai training and phenomenal community this school has, there’s no other place that offers an experience like this one!”

From the reviews

Extreme Power Gym is exactly that, extreme with focus on power of the mind, body and spirit. Not only is Ajahn Ruben Rowell the highest level master teacher, he is also a mentor and someone who cares deeply about his students.

★★★★★ — Richgnar, Dec 2023

Great gym with an amazing community. My daughter has been going here for 3 years now. She started in the kids class in 5th grade and recently moved into the teen/adult classes as she’s starting high school. Ajahn has been such a positive influence in her life.

★★★★★ — Adrianne, May 2026

Coming to Extreme power gym has been such a fulfilling experience. I moved to the area recently and was hopeful to find a good gym, what I found at Extreme Power is a not just a gym but a school, a teacher of true Muay Thai, a community of students who are welcoming and kind and present as true martial artist.

★★★★★ — Nima, Sep 2025

I brought my son here when he was turning age 4 after searching different places. My son has a brain disorder, but Muay Thai really helped enhance that. EPG helped with his confidence, with him being sure of his self when the bullies persist.

★★★★★ — Anthony, Sep 2025

Excerpts from public Google reviews. Read all 69 reviews →

New to muay thai? Start at Extreme Power Gym

Extreme Power Gym comes up as a beginner-friendly gym — noted on their own site. If you've never thrown a punch or a kick, that's exactly who a good beginners program is for. A few things worth knowing before your first week. First, you don't need to be fit to start — you get in shape by training, not before it, and coaches scale the conditioning to you. Second, you won't be thrown into sparring — reputable gyms build fundamentals (stance, footwork, and the basic strikes of the "art of eight limbs") for weeks before any contact, and sparring stays optional. Third, all levels really are welcome — ask about a dedicated beginners or fundamentals class time so your first session is alongside others who are also starting out. Most gyms are happy to let you watch or try a class first, so reach out before you commit.

See their beginner class info

Your first muay thai class at Extreme Power Gym

Nervous about walking into a muay thai 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 on pads and bags — not fighting. Rest whenever you need to; no one will bat an eye. What to wear: shorts or athletic wear and a t-shirt; you'll train barefoot on the mats. What to bring: water and hand wraps if you have them — many gyms lend gloves for a first class, so it's worth asking when you call. As you keep training you'll add your own gloves, wraps, a mouthguard, and shin guards. Sparring is optional and comes later, once your fundamentals 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.

Muay thai is a contact sport. Ease in, 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 Extreme Power Gym

3375 Mission Ave # E, Oceanside, CA92058

Get directions Instagram

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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.