
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 Salt Stone sauna is a special sauna, made of salt stone, where you can feel stress melt away …
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This sauna is made of Himalayan salt stone and crystals. These are known for their ability to purify the air, promote skin health and reduce stress. This is a 65°C sauna, which makes this the perfect place to start or end your sauna day.
On Saturdays and Sundays, special Aufguss sessions are given in the Salt Stone sauna. During an Aufguss session, water infused with essential oil is thrown onto the hot stones which increases the humidity and temperature. Your body responds by sweating, in an effort to cool down again. Surrounding your body is a protective layer of air that is blown away when the Aufguss master flaps a towel or fan. This gives you a real adrenaline rush.
The Salt Stone sauna is situated right by the entrance to the nude area of Thermae Boetfort.

- 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.

- Aufguss - Aufguss
A good Aufguss session is so much more than heat and scent. It is a carefully crafted sauna ritual that takes you on a unique journey.
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