
National Sauna Week: wellness with great prizes
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From Monday 14 to Friday 18 September 2026, the Belgian Sauna Association is organising National Sauna Week. And of course, Thermae Boetfort and Thermae Grimbergen are taking part too!
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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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Step into our green wellness paradise and leave the outside world behind. Hear the birds singing. Smell the flowers. Feel the fresh air. You’ll notice it right away: this is a place where you can truly unwind and catch your breath.
No noise. No rush. Just peace, surrounded by nature. Take a quiet walk, let everything sink in. Then begin your journey through our world of saunas and wellness facilities.
An important question and often a relief for first-time visitors.
At Thermae Grimbergen, you can choose 7 days a week:
You decide what feels most comfortable for you.
A simple list to help you start without stress.
Make sure to bring:
Forgot something? No problem. You can rent everything at reception.
A few extras that can make your day even better:
There are no strict rules you have to follow. The most important thing is to listen to your body and do what feels right.
A few gentle guidelines:
Always begin your day with a shower. After each sauna session and every visit to the toilet, take another shower.
Take your time to cool down properly. A simple rule: 15 minutes in the sauna = 15 minutes cooling down.
After that, rest for a while. Let your body recover. Repeat as often as you like. And remember: your body knows exactly what it needs.
Ready to experience it yourself? Curious to discover what a sauna day can do for you?
Come and experience it in our green wellness oasis, just outside Brussels. Take that moment for yourself. Feel the warmth, the calm… and let everything else fade away.

- Promo - Promo
From Monday 14 to Friday 18 September 2026, the Belgian Sauna Association is organising National Sauna Week. And of course, Thermae Boetfort and Thermae Grimbergen are taking part too!

- Promo - Promo
Visit Thermae Boetfort or Thermae Grimbergen in August and receive an exclusive voucher! This voucher lets you bring someone along to our sauna and wellness centre for free between 1 September and 16 October 2026.

- Sauna experience - Sauna experience
Not in the mood for crowds on this holiday? Treat yourself to a relaxing day at our green sauna estate, as Thermae Grimbergen is open on Saturday 15 August 2026 from 10:30 a.m. to midnight!
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