Our nude area can currently be reserved as two separated private saunas: Back to nature and Back to Relax*. A unique experience where you can have the splendor of Thermae Grimbergen all to yourself! Don't forget to book in advance.
* Offer valid until the public baths can open again.
Aquarius has no less than seven different saunas and numerous other wellness facilities for those who prefer relaxing naked. Swimwear is strictly forbidden in this section. A sauna session will take you on a trip around the world: in our Tibet Sauna, for example, you can enjoy the power of salt stones, the African Lodge Sauna completely immerses you in an authentic African atmosphere, the Black Forest Sauna looks like a real mountain cabin, and in the Machu Picchu relaxation area you can find absolute peace and quiet.
Naturally, between two sauna sessions you can also relax in one of our jacuzzis, the swimming pool, the Roman steam bath, the tepidarium with its heated foot bath, or in the beautiful garden.
Every day, between 14h and 21h30, there are six different Aufguss or scrub sessions. On Fridays and Sundays there is an additional Aufguss session.
African Lodge Sauna
The sauna's temperature is 50°C.
The African Lodge Sauna is a unique sauna where you are completely immersed in an authentic African atmosphere. The humidity is high, causing it to feel hotter than it actually is.
The sauna's temperature is 75°C.
This sauna has an Asian feel. It has been constructed completely of bamboo canes, the walls are made of bamboo, the benches you can sit or lie on, even the floor, were made out of this beautiful wood.
The sauna's temperature is 75°C.
This is a very special sauna! In the middle of the cabin there is a lunar rock, which is charged during the night by lunar rays and releases its energy in the sauna during the day. The heat is quite tolerable here.
The sauna's temperature is 60°C.
The Tibet Sauna is made entirely of salt stones that purify the air because of the heat. Did you know that salt positively affects your respiratory system? Other minerals, like iodine and calcium, are released too. In addition, you can enjoy colour therapy in this sauna.
The sauna has an average temperature of 85°C.
This sturdy sauna is built from Kelo wood, fir trees from Norway and Finland. Thanks to the theatre setup, everyone has a clear view of the show Aufguss sessions that are organised here. The Kelo sauna is only open for those times, so it is not accessible all day.
The sauna’s temperature varies between 80°C and 100°C here.
Completely unwind thanks to the panoramic view on the beautiful garden in this Woodstove Sauna. It is made entirely of wood and it is heated by means of a real wood stove. The last Aufguss session takes place in this sauna.
The sauna's temperature is 70°C.
A unique fragrance of wild herbs from the Ardèche spreads through this sauna. Thyme helps to reinforce your natural resistance and keeps you vital and full of energy. Lavender brings rest and gives you a feeling of happiness.
Black forest sauna
The sauna's temperature is 85°C.
For those who love a hot sauna, the Black Forest Sauna is the place to be. In this authentic mountain sauna you imagine yourself in a typical Austrian alpine village. It is a hot sauna, where in addition you can regulate the humidity yourself. A unique experience!
Roman steam bath
The humidity in the Roman steam bath is of course a notch higher than in the regular, dry sauna. The room is filled with steam, and those who feel like it can even bubble in the champagne bath in the centre! Every day you can take part in a real scrub session here.
Swimming is relaxing and healthy! You move around in an environment that does not strain your muscles and joints, but rather stimulates them. It is good for the heart, improves your sleeping pattern, and your mood along with it. It is the ideal way of letting go of all the stress during your sauna visit.
Your body comes to rest in the water and especially in a warm bath. Add a heavenly hydro massage and your heartbeat will increase, allowing your muscles to receive more oxygen. A jacuzzi is the number one place to completely let go of your physical and mental stress for a while.
Tepidarium with heated footbath
Did you cool down properly after the sauna? Then the Tepidarium is the ideal place to get warm again. Putting your feet in the warm water will improve your blood circulation, causing your body to receive more oxygen and to remove toxins more quickly.
Plunge baths, hot and cold showers
Hygiene is one of our top priorities, which is why taking a shower at the start of your day of sauna, and after every toilet or sauna visit is mandatory. Cold water is essential to cool your body down again. The brave ones may want to venture into the plunge pool; a real boost for your body!
Private garden in full nature
The garden at Thermae Grimbergen is an idyllic place where you can be completely yourself for a while, away from all the everyday noises and distractions, just plain Nature. Walking barefoot through the grass, a plunge into the natural swimming pond, or a nice sauna … What more could anyone want?
Switching from hot to cold during a sauna visit is really good for your body, but you must also take a break. The Machu Picchu or African relaxation areas, both beautifully decorated within their own theme, are ideal places to close your eyes and doze off.