
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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Feeling tired, low on energy or easily overstimulated now that spring is arriving? You’re not alone, spring fatigue is a well-known phenomenon. Your body gives subtle signals when it’s in need of rest. In this blog, discover how the sauna can help relieve fatigue.
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Warmth as a powerful recovery ritual. Fatigue rarely appears out of nowhere. Your body sends small signals at first. We’ve simply forgotten how to listen to them. What should you look out for?
A sauna session activates your parasympathetic nervous system, this is the system responsible for rest, physical recovery and regeneration. A lot happens in the warmth of the sauna. Your blood vessels dilate, improving circulation, waste products are flushed out more easily and nutrients and oxygen reach your cells more efficiently. Your muscles relax more deeply and stress hormones decrease.
A few hours in the sauna are a genuine workout for your body. But only if you do it correctly: after heating up, proper cooling down must follow. This alternation between hot and cold temperatures improves mental clarity, releases muscle tension, promotes deeper sleep and helps stabilise your energy levels.
In winter, your body produces more melatonin, the hormone that helps you sleep. As the days grow lighter, your hormone balance needs time to readjust. That transition from winter to spring can temporarily cause tiredness, low energy and difficulty concentrating. Warmth and calm can support your body during this shift.
Spring is full of new energy: nature wakes up, and you want to feel that renewal too. The heat of the sauna boosts your circulation, delivering more oxygen to your cells and aiding muscle recovery. It also lowers cortisol levels, helping you feel calmer and more grounded. In many ways, the sauna acts like an internal spring clean.
Consider joining one of our special relaxation sessions as well; they help you breathe more calmly and improve your sleep quality. Listen to your body. Give yourself time to unwind, breathe more deeply and let go of lingering fatigue.
How are you welcoming spring?

- 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
Pure relaxation is always at the heart of what we do, and that’s no different on public holidays. Thermae Boetfort is open on 15 August, the perfect day to slow down completely. Will you choose peace, warmth and pure indulgence on this holiday?
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