
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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The heat in an infrared sauna is more gentle than in a Finnish sauna. At Thermae Grimbergen, there is an infrared sauna in the garden of the swimwear area.
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The main difference between a traditional Finnish sauna and an infrared sauna is the heating process. In a Finnish sauna, it’s the air around you that is heated so you get hot and start to sweat. In an infrared sauna, the infrared rays heat your body directly, which completely relaxes your muscles. It’s a very different heat experience.
Which is your favourite: traditional or infrared sauna?

- 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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