where strength meets family.
That is what we at ARJ firmly believe in.
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At ARJ, we see martial arts as a tool, not an end in itself. It's a physical and mental challenge that pushes personal boundaries — and thus creates connection. Not only with yourself, but also with others. ARJ feels like family.
hi there:
Mike polanen
Hi, I'm Mike Polanen — founder, owner and head coach of ARJ Trainingen. The name ARJ comes from my children: Abigail, Romee and Justin.
That sense of family is in everything we do. Everyone is welcome, whether you're here to get fitter, push boundaries or just enjoy exercising. Come by for a free trial lesson and feel the energy of ARJ for yourself!
Our core values
connect us
respect
Discipl
motivation
family sense
onze missie
Bij ARJ Gym geloven we dat sport méér is dan alleen fysiek sterker worden. Onze missie is om iedereen – jong of oud, beginner of professional – een plek te bieden waar je mentaal én fysiek groeit. In een omgeving die voelt als familie. We creëren meer dan een gym, maar een community. Een plek waar discipline, respect en persoonlijke ontwikkeling centraal staan. Waar je elke training wordt uitgedaagd om het beste uit jezelf te halen, gesteund door ervaren trainers en een hecht team.
“I feel seen and supported. That gives energy!”
Wieteke
Beginner, 2 years member
“For me, ARJ is really fun and entertainment!”
Matthijs
Sponsor and 2-year member
“I couldn't live without ARJ anymore”
Juliano
6 years of member
“This is where I make the most of my mental development”
Dylano
Advanced kickboxer
“I've become stronger and I'm not letting myself walk over me anymore.”
Dustin
Trainer & kickboxer
“Everyone is welcome here”
Ron
10 years of member
“Everyone supports and encourages each other”
Ellie
10 years of member
Our trainers
Aangenaam kennis te maken. Meer weten over ons? Klik op een van ons om meer over ons te lezen, of bekijk de overzichtspagina.
Check out our classes
Answers to your questions
Any doubts or questions before training? We totally get it. Below you'll find answers to the most frequently asked questions — quickly and clearly. Is your question not listed? Feel free to send us a message.
Is the gym easily accessible by public transport?
Sure. The gym is within walking distance of a bus stop and is therefore also easily accessible without a car. For example, it's a 10-15 walk from The Hague Central Station and Hollands Spoor. Are you coming by car? The first 2 hours of parking are free on the Bink36 site.
What does a membership cost?
We offer different subscriptions depending on how often you train. Check the pricing page or ask us for advice.
Hoe meld ik me aan voor een proefles?
Dat regel je supersnel via onze website. Vul het formulier in en kies jouw moment – wij zorgen voor de rest.
Is er parkeergelegenheid bij de gym?
Jazeker, je kunt bij ons voor de deur (gratis) parkeren. Ook met de fiets of scooter ben je zo binnen.
Can I change clothes in the gym?
Yes, there are changing rooms where you can change clothes quietly before and after training.
What's the difference between boxing and kickboxing?
In boxing, you only use your hands, while in kickboxing, you also use your legs for kicking. It makes the training extra dynamic and complete.
Do I have to be fit to start kickboxing?
No, you know. You just came to get fit. The lessons are easy to structure and you always train at your own level.
Do I have to bring my own boxing gloves?
You don't need your own boxing gloves for your first lesson, you can borrow them from us. Do you decide to subscribe? Then we expect you to bring your own gloves for hygiene purposes. Finally, that also tastes just that little bit better!
Can I also take private lessons?
Yes, we also offer private training. Ideal if you want to grow faster or would like personal guidance. Just send us a message for the options.
Wat moet ik meenemen naar mijn eerste les?
Sportkleding, een handdoek en een flesje water zijn voldoende. Heb je al bokshandschoenen? Neem ze mee! Anders kun je ze bij ons lenen.
Is kickboxing suitable for beginners?
Absolutely! Many of our members started out with no experience. Our trainers explain everything step by step, so you can enter at your own pace.