IJburg expansion completed!
The expansion at our IJburg location is complete – which means more space and even better workouts!
We've enlarged the group class area, allowing us to welcome larger groups comfortably. The Open Gym has also been significantly expanded, now featuring new strength and cardio equipment, including:
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Pure Strength Low Row & Pull Down
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Skill Run treadmills
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A completely updated cable station
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And… CheckUp – our newest tool to track your progress smartly and accurately.
This expansion aligns perfectly with our vision: space, calm, and quality – so you can fully focus on your goals.
We’re proud of this next step and excited to offer our members an even better gym experience.
Expansion Deal
Sluis Gym just got bigger: a larger class studio, more open gym space, and brand-new equipment. To celebrate, we’re launching our Expansion Deal – exclusive to the first 100 new members!
Claim your spot now and enjoy €10 off every 4 weeks for a full year, no sign-up fee, and a free personal trainer intake.
Valid on 1- and 2-year memberships. Don’t wait – spots are limited!
Stay up to date with the latest news
27.10.25
Bring a Friend Haarlem
Training together is not only more fun, but also more motivating. Bring a friend to Sluis Gym Haarlem and you’ll both benefit from this offer.
27.10.25
Bring a Friend
Training together is not only more fun, but also more motivating. Bring a friend to Sluis Gym and you’ll both benefit from this offer.
21.07.25
Free Day Pass Haarlem
We’re proud to open the doors of our brand-new gym in Haarlem. At Sluis Gym, it’s all about strength, community, and results. To celebrate our...