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Fortuna Cardio Kickboxing

Strap on real gloves and have the time of your life punching and kicking your way to a fitter, slimmer, happier you.


We value your privacy and will never share your information with anyone, ever!

The funnest, most action-packed workout of your life. Guaranteed.

Cardio Kickboxing class FLIES by! Even though it's a full-hour, full-body workout... it goes by in a flash.

That's because almost nothing on this planet is as fun as punching and kicking the heck out of a heavy bag.

You'll feel like a total pro - and your body will transform fast.

Melt calories, burn fat, and tone muscle - from head to toe.

EVERY part of your body gets a workout in Cardio Kickboxing! That includes your arms, chest, stomach, hips, butt, thighs, and calves.

That means ALL your trouble spots won't trouble you for much longer! And every part of you will get stronger, leaner, and fitter.

In fact, you can burn up to 800 calories (or more) EVERY time you come! How awesome is that?

You're joining more than a calorie-blasting workout... You're joining an amazing, supportive family.

99% of our members have never thrown a kick or a punch in their life! So if you're a total beginner - you're in good company!

There's nothing to be embarrassed or ashamed about! Everyone here was once a beginner - so we just want to support you and help you learn, get fit, and grow.

Fair enough?

People come here for the fat-melting workouts... but they stay for the people.

Our community here is really something - and I can't wait for you to join it too.

Friendships are born all the time. People give each other support and accountability to stay on track.

It really feels like a family, and I know from day 1 you'll feel it.

Out of shape? No problem! In shape? Get ready to take it to the next level.

The great thing about Cardio Kickboxing is even though it's a group environment... everyone's doing their own individual exercises.

That means you go at a pace that's right for YOU.

Our amazing instructors will motivate the heck out of you to grow and reach new heights, too. So don't worry about motivation. We've got you covered.

Frequently Asked Questions

Most likely you'll be in a group class. However we gladly offer private classes for those that are interested. Feel free to ask any of our instructors for more info on private classes!
At peak times, there's between 15-30. Some times have more, some less. But we make sure to have enough instructors to match the class size. That way you always get the attention you need.
Yes! Our classes cater to people of all experience levels, and in every class there are people all over the spectrum.

Check out what Google users are saying about JSK 5.0 Humboldt Martial Arts & Fitness

Serena Giordano
- 3 months ago
My son takes classes here and the owner Mr. Shepard is great. He has helped with my son's attitude and determination tremendously. I enjoy being able to watch the kids learn new and hone previously learned techniques. It's pricey, but worth it. The monthly membership doesn't include all the extra gi attire, etc. However, we were introduced by a super discount which seems common with entry level kiddos. I'd love to try adult classes.

David Hooten
- 7 months ago
Excellent school to attend to begin your journey to martial Arts. Kenpo is a good full contact art that is good for stress relieve and get in shape while learning how to be competent and confident in your ability to defend yourself. Mr. Shepherd is a good instructor who's work shows through his higher ranked students and trickles down all way down to the beginners. All are welcomed at this school. They also have kick boxing and sparring classes too. Would highly recommend and I'm thankful that there is such a good opportunity here in Fortuna.

Lisa Armstrong
- a year ago
Two of my five grandchildren attend karate lessons and love every minute! I highly recommend this establishment! I am impressed with their professionalism, kindness and quality program! My other 3 grandsons will attend as soon as they are old enough!

Evelyn Downey
- a year ago
We have 3 girls who have been taking Mr. Shepard's karate class for almost a year, and we have been so impressed by the increase in their ability and their confidence. When one of the girls began, she just stood on the mat, head faced down, too shy to try. Mr. Shepard was patient yet stern with her, and she has grown in leaps and bounds!

- a year ago
My daughter goes to this program. Mr. Shepard is so patient with the kids and is able to firmly, kindly and with respect re-guide their focus and attention span back to the techniques and values of Kenpo. This class has given my daughter a motivation to practice at her skill and practice respect to her parents. I would and do recommend this class to everyone.

You'll Find The Guidance, Discipline, And Support You Need Right Here. Guaranteed.