
National Sauna Week: wellness with great prizes
- 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!
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The Celestine sauna in the nude area of Thermae Grimbergen is a very dry sauna with a special crystal in the middle
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The Celestine sauna is situated under the restaurant at Thermae Grimbergen. It’s a small cosy sauna with a special stone in the middle of the cabin: a celestite crystal. This crystal has calming properties and promotes a peaceful night’s sleep
With a temperature of about 75°C, this is a very dry sauna, so even sauna novices will be able to tolerate this temperature quite well. The stove is hidden under the benches and there is a cold plunge pool next to the sauna to cool down in.

- 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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