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Let’s go!

We do everything in our power to make sure you push your own limits. Every single time. Discover our gym today, where quality, good vibes, and unmatched determination are the standard.

Welcome to Undergroundgym!

Groepslessen en of kickboksen
The best of both worlds: samen, maar toch alleen!
Je kan ook kiezen om te kickboksen en groepslessen te volgen.
Met een onbeperkt abonnement heb je ook toegang tot de Open Gym

Small Group Training
Train met maximaal 5 anderen.
Met een small group abonnement kun je ook gebruik maken van onze Open Gym

Personal Training
Onverdeelde aandacht en oneindige expertise.

Open Gym
Trainen op je eigen voorwaarden.

Terms and Conditions

Of course, there are also some standard conditions that make life easier for everyone. Enjoying sports in Arnhem should always be fun. We have terms regarding liability and direct debit. Feel free to read them at your leisure, and if you have any questions, you know where to find us.

Sports and physical activity can involve risks. You will always be well-guided by us, of course. However, participating in Undergroundgym’s training sessions is entirely at your own risk. Undergroundgym and its trainers are not liable for material or immaterial damage resulting from accidents or injuries.

We are also not liable for damage, loss, or theft of personal belongings. Fortunately, we have never experienced the latter either.

Undergroundgym has the right to implement changes in rates.
Fortunately, you’re not locked into anything unnecessarily with us. There is only a one-month notice period, and your termination must be received by us no later than the 24th of the month using a termination form.
No hassle with manual payments. We work with automatic direct debit. Perfect! By signing this form, you authorize Undergroundgym to send continuous direct debit mandates to your bank for the chosen subscription. If you disagree with the debit, you can have it reversed. Please contact your bank within eight weeks of the debit. If for any reason the direct debit is not possible and it is returned to your own account, a 5 euro penalty will be charged. This amount will be collected in the next direct debit.
Join Undergroundgym Arnhem now and enjoy exclusive benefits! As a member of our community, you will receive a fantastic 10% discount at OLB Arnhem, the martial arts & fitness specialist.
Undergroundgym. de sporstchool van Arnhem


Experience the difference and book your trial class at Undergroundgym Arnhem today. We’re ready. Are you?


Ervaar het verschil en boek vandaag nog je proefles bij Undergroundgym Arnhem. Wij zijn er klaar voor. Jij ook?