Radium Boulders is on the site of the former Radium Rubber factory. We have taken the first floor in one of the factory buildings. If you have trouble finding us: look for the distinctive Radium Rubber chimney. We are easily reachable from the city center (5 min walk) and the motorway (5 min drive). See you soon at Radium Boulders!


Radium Boulders is just 9 minutes cycling from the station, 3 minutes from the city center. You can park your bike right in front of our entrance.


Bus stop Frontensingel / Maagdendries is close to our gym. Walk from the bus stop towards the Radium Rubber chimney and look up: you can find us on the first floor of one of the surrounding buildings. Check this Google Maps link to find your quickest route. Open it directly on your smartphone for convenient routeplanning.


The A2 motorway is a short 5 minute drive away and provides a quick connection to Belgium, Germany and the rest of Limburg. On the parking lot Fort Willemweg FREE PARKING after 18:00 (Thursdays from 21:00). Hourly rate is €1,50, day ticket €6,60. At Q-Park Cabergerweg it’s always paid parking. It costs €1 per 40 minutes, €10 for a day.

As a Radium Boulders member you can also climb at our sister gyms!
Energiehaven Utrecht | Kunststof Leiden | Roest Zwolle

Regular opening hours

Monday 09:00 - 00:00
Tuesday 09:00 - 00:00
Wednesday 09:00 - 00:00
Thursday 09:00 - 00:00
Friday 09:00 - 00:00
Saturday 09:00 - 00:00
Sunday 09:00 - 00:00

Special days

Unfortunately we are temporarily closed as part of the Dutch corona lockdown. We hope to welcome you back soon!