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John Island Boxing & Development

5 ★★★★★ 102 Google reviews · Kickboxing gym in Rocklin, California

Beginners welcome Kids & teens Private lessons Affiliated

Affiliated gym — reviews and the gym's own info suggest it belongs to a known kickboxing or boxing-fitness franchise or network (think 9Round, iLoveKickboxing, CKO, TITLE Boxing Club or Jabz). Franchise gyms run a consistent class format and are often a friendly, familiar place to start. If a specific brand matters to you, confirm it on the gym's own site.

Coached fitness center for all ages, offering self-defense training and boxing lessons for all skill levels.

Plan your first class

  • Beginner-friendly all fitness levels welcome, including total beginners — no experience needed, and you get in shape by training, not before
  • Kids & teen classes kids and teen kickboxing classes — built around confidence, focus, and fun
  • Private lessons one-on-one coaching available — a focused way to start or to work around a busy schedule; ask about availability and rates
  • Today see hours ·
  • Website & schedule johnislandboxing.com — book classes and see the live schedule
  • Phone (916) 280-5633

Hours

Monday 5:30 AM–8 PM
Tuesday 5:30 AM–8 PM
Wednesday 5:30 AM–8 PM
Thursday 5 AM–8 PM
Friday 5 AM–8 PM
Saturday 7 AM–5 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 John Island Boxing & Development, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🧒 Kids Kickboxing 30 mentions

“He's great with kids and has range working with 7 year olds up to teens and not too many people can do that.”

All gyms that run kids kickboxing →

🌱 Beginners 2 mentions

“Whether you’re a beginner or more advanced, he knows how to get the most out of you.”

All gyms that run beginners →

🥊 Boxing 33 mentions

“I highly recommend John Island boxing and develop for health and wealth to stay fit or if you and to Pursue a career in boxing John knows how to guide you to achieve your goals.”

All gyms that run boxing →

👤 Private Lessons 3 mentions

“I’ve been doing personal training sessions with John Island and I can honestly say it’s been one of the best training experiences I’ve had.”

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Teens Kickboxing

“He's great with kids and has range working with 7 year olds up to teens and not too many people can do that.”

All gyms that run teens kickboxing →

Other martial arts here

Kickboxing gyms are usually multi-discipline. Here's what else members mention training under the same roof at John Island Boxing & Development — mined from their reviews and the gym's own info.

🥊 Boxing 33 mentions

“I highly recommend John Island boxing and develop for health and wealth to stay fit or if you and to Pursue a career in boxing John knows how to guide you to achieve your goals.”

Other gyms that also teach boxing →

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 102 Google reviews — in their own words.

🧑‍🏫 expert, motivating coaching 4 mentions

“Coach John is the BEST!! He's great with kids and has range working with 7 year olds up to teens and not too many people can do that.”

🎉 fun, high-energy classes 2 mentions

“He's got a really upbeat attitude and a friendly smile.”

🧒 strong kids program 6 mentions

“My daughter loves it so much she begs us to go extra days, and now my son wants to stop basketball to start going too.”

🧠 builds confidence & relieves stress 7 mentions

“Not only has he improved his boxing skills, but he helped him through some really tough times and built up his confidence in a way I never thought possible.”

🤝 friendly, family gym 4 mentions

“John is a great coach down to earth and super friendly.”

From the reviews

John Island is one of the best in his craft, a very humble man with god given gift to help develop and bring the best out of anyone. John has been a mentor and stable in the Richmond community amd has helped myself and many others in our life’s journey.

★★★★★ — Aaron, Aug 2021

John is the best boxing trainer and overall fitness guru I’ve ever encountered. His dedication to his clients is exceptional. He constantly motivated and pushed us beyond what we thought were our limits while exercising so much patience. We love you, John!

★★★★★ — Rachel, Dec 2023

John Island Boxing and Development is an amazing program. My daughter joined his program 1 1/2 years ago and I have seen so much growth in her. Not only physically and mentally, but her self confidence has improved immensely (that is her in the picture).

★★★★★ — Crystal, Nov 2023

Much respect to Coach John. He is very attentive and technical. Coach John takes his time to actually learn everyone's name. Training sessions are non stop!! He motivates everyone and keeps it fun. Highly recommend joining! All four of my kids love Coach John.

★★★★★ — Mrservin167, Nov 2025

Excerpts from public Google reviews. Read all 102 reviews →

New to kickboxing? Start at John Island Boxing & Development

John Island Boxing & Development comes up as a beginner-friendly gym, going by their listing and members’ reviews. If you've never thrown a punch or a kick, that's exactly who a good beginners class is for. A few things worth knowing before your first week. First, you don't need to be fit or coordinated to start — you get in shape by training, not before it, and coaches scale every drill to you. Second, you won't be thrown into hard sparring — reputable gyms build the basics (stance, footwork, and punches and kicks on pads and bags) first, and any contact eases in gradually under a coach's control. Third, all fitness 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 kickboxing class at John Island Boxing & Development

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 John Island Boxing & Development

6850 Five Star Blvd, Rocklin, CA95677

Get directions

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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.