
Summer Glow Facial 50': new offer!
- Beauty - Beauty
Treat yourself to this gentle after-sun facial treatment for just 69 euros, exclusively available to book from 18 May to 16 September 2026 inclusive.
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Not a cooldown fan? The summer is the perfect time to learn how to do it properly!
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When it’s sunny, the cold plunge pool or natural swimming lake of Thermae Grimbergen are the perfect places to cool down. And, because it’s nice and warm outside, immersing yourself in the cold water is a lot less daunting!
What is the best way to cool down? Leave the sauna and put on your spa slippers (and maybe your bathrobe) and have a little stroll around the garden. Take a few deep breaths in and out. The heat in the sauna has opened up the alveoli of your lungs, making it easier to absorb the fresh oxygen afterwards. Once you have walked around for a few minutes, have a cold shower. Start with the parts of your body that are furthest away from your heart and work your way up to your heart. Only now are you ready to jump into the swimming lake or the cold plunge pool. And if you are feeling really brave, you could even immerse your head!
How long should you cool down for? The golden rule is that your cooldown should be as long as your sauna round. So, if you have spent fifteen minutes in the sauna, you should also cool down for fifteen minutes.
And after cooldown? Don’t hop into the sauna again straightaway – take a little breather. Swim for a bit, drift off in the Jacuzzi or just lie down on one of the sun loungers and have a little relax!

- Beauty - Beauty
Treat yourself to this gentle after-sun facial treatment for just 69 euros, exclusively available to book from 18 May to 16 September 2026 inclusive.

- Sauna experience - Sauna experience
May invites you to step outside. To slow down. In our green oasis, every long weekend feels like a gentle pause. You’re warmly welcome, as Thermae Grimbergen is open every day!

- Sauna experience - Sauna experience
Never been to a sauna before? You’re curious, maybe even excited, but still have a few questions or doubts? That’s completely normal. Everyone faces that first step at some point. With a few simple tips, your first visit can instantly become a deeply relaxing experience.
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