
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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Do you feel exhausted for no clear reason? Spring, in particular, can make fatigue suddenly appear. In this blog, you’ll discover how the sauna can help with both general fatigue and spring tiredness and why relaxing at the green wellness domain of Thermae Grimbergen helps your energy flow.
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As wellness experts, we see it every spring. The days grow longer, the sun reappears… and yet many people feel drained. As if their bodies can’t keep up, and that’s no coincidence. Spring fatigue has a biological foundation. During winter, your body produces more melatonin, the hormone that makes you sleepy. As spring brings more daylight, your hormonal system needs time to readjust. Serotonin levels – which influence mood and energy – shift as well.
Your immune system becomes more active. Your internal clock needs to reset. And rising temperatures affect your blood pressure. All these changes require energy, a lot of it. Your body is essentially reprogramming itself. The result? You feel slower, less focussed and more tired!
A sauna visit is far more than just sweating. It’s a controlled heat stimulus that both challenges and restores your body. In the sauna your blood vessels dilate, boosting circulation. Your muscles relax more deeply and cortisol levels drop.
Warmth is followed by cooling down, training your blood vessels and stimulating circulation. Your body becomes better at responding to temperature changes.
At Thermae Grimbergen, nature also plays an important role.
Scientific research shows that spending time in nature reduces stress hormones and calms the nervous system. Even simply looking at greenery or the swimming pond has a measurable relaxing effect.
By planning regular sauna days at our green wellness domain, you give your body a valuable reset. You support your circulation, help stabilise your hormonal balance and create intentional moments of rest.
Combine your sauna visit with a massage or treatment to enhance this effect and release deeper tension. This gives both body and mind the chance to return to balance. Think of a sauna day as a powerful addition to a healthy lifestyle,
an invitation to step away from the rush of daily life. Come to our green wellness oasis and let warmth and nature work their magic.

- 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!

- Aufguss - Aufguss
Heat and scent come together in one intense wellness moment. But what exactly is an Aufguss session? Find out how our sauna masters prepare this sauna ritual and how these sessions affect you!

- Saunavacation - Saunavacation
Fancy a mini-break without the usual hassles that come with travelling to far-flung destinations? In this blogpost, we reveal why a summer overnight stay in the wellness hotel of Thermae Boetfort just outside Brussels feels like a real pampering treat!
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Kitchen renovation from 14 to 18 September inclusive