Quick FactsOverview
About Thermen Londerzeel
Thermen Londerzeel, Belgium is a paid textile-free wellness resort at Stuikberg 4 in Londerzeel, Flemish Brabant, approximately 21 kilometres north of Brussels and 20 kilometres from Antwerp. Swimwear is not permitted anywhere in the spa or pool areas: the facility operates entirely without bathing suits for hygienic reasons. The resort is set on a rural estate and is cited as one of the most extensive sauna complexes in Belgium. Advance reservation is required for all visits.
Pools, Saunas, and Facilities
The outdoor pool is maintained at 32 degrees Celsius year-round and is the most popular feature in warmer months. Indoors, an 8 by 5 metre pool runs at 24 degrees Celsius, and a large jacuzzi at 36 degrees Celsius provides a heated soak. Nine themed sauna cabins are spread across the estate, including an Austrian Almsauna, a bio-panorama sauna, an infrared sauna, an aqua sauna, and a Marco Polo sauna with an aquarium of tropical fish where aufguss masters lead timed steam ceremonies. A steam room, three cold plunge barrels, foot baths, and a cooling bath are also available. A beauty centre offers massages and treatments bookable daily. A restaurant with a spacious terrace serves meals throughout the day. A hotel offers rooms with bathrobes, minibar, and coffee machine; hotel stays include two full days of spa access.
Location & Access
Getting to Thermen Londerzeel
Thermen Londerzeel is at Stuikberg 4 in Londerzeel, accessed from the A12 motorway between Brussels and Antwerp. Visitors from Brussels take the A12 north and exit at the Duvel Brewery junction; from there, follow Sint-Jozefstraat and then Stuikberg, where the resort is signposted on the right after a sharp bend. Free on-site parking is available. By train, Londerzeel station is approximately 2.5 kilometres south of the resort; a taxi or bicycle is needed for the final stretch as no direct bus serves the entrance. From Brussels, the drive takes approximately 25 minutes on the A12. These hot springs near Brussels are in a rural setting between the A12 and the Scheldt polder countryside, making a car the most practical way to arrive.
Practical Access Notes
Advance reservation is mandatory for all visits; identity documents are checked at arrival to confirm the booking. Walk-in entry is not available. No swimwear is permitted anywhere in the facility, including in the restaurant and all relaxation areas; all visitors wear bathrobes between zones. Towel rental is available at reception and slippers can be purchased on site. Hotel guests receive two full days of spa access with their stay and can check in from 10am if an arrangement has been booked. The resort is open every day from 11am to midnight, including public holidays and Sundays.
Suitability & Accessibility
Who Thermen Londerzeel Suits
Thermen Londerzeel suits adult visitors who want a fully textile-free sauna and wellness experience in a rural setting equidistant between Brussels and Antwerp, with no swimwear zones or mixed zones. The nine themed saunas, timed aufguss sessions with experienced sauna masters, and year-round outdoor pool make it a strong option both for regular sauna visitors and for those trying a fully textile-free Belgian spa day for the first time. The resort's reputation for cleanliness and aufguss programming attracts a loyal repeat visitor base. For those seeking hot springs near Brussels without a swimwear option, Thermen Londerzeel is the most consistently praised fully nude choice north of the city.
Planning Your Visit
Advance reservation is required before every visit; check the website to confirm availability and book a time slot. Hotel stays of one night include two full spa access days, making an overnight stay the most efficient way to enjoy the full programme of saunas, aufguss sessions, and evening dining. Massage and treatment appointments should be reserved in advance. The outdoor pool is busiest on sunny weekend afternoons; weekday mornings offer a quieter atmosphere. The restaurant is open to all visitors throughout the day in a bathrobe-only environment, and serves both lunch and dinner with a menu that changes with the seasons.
Safety & Etiquette
Safety at Thermen Londerzeel
Thermen Londerzeel is generally safe for adult visitors, operating as a managed facility with staff throughout the sauna and pool areas. The outdoor pool is at 32 degrees Celsius, the indoor pool at 24 degrees Celsius, and the jacuzzi at 36 degrees Celsius; visitors should acclimatise gradually when moving between temperatures and should exit heated water if they feel overheated. The cold plunge barrels are at ambient temperature and should be used in short bursts after proper heating in the sauna.
Textile-Free Rules and Etiquette
No swimwear is permitted anywhere in the resort under any circumstances, including in the restaurant and all relaxation areas. All visitors wear bathrobes between zones and facilities. Towels are used as bench mats in the sauna; direct skin contact with wooden surfaces should be avoided. Aufguss steam sessions have a timed schedule and limited capacity: arriving a few minutes early is advisable to secure a place. The sessions in the Marco Polo sauna involve intense heat from experienced sauna masters and are aimed at visitors comfortable with high-heat sauna practice; newer sauna visitors may prefer to start with the lighter-heat options such as the infrared or bio-panorama sauna. Medical conditions including cardiovascular conditions and pregnancy warrant a consultation with a medical professional before attending sauna or heated pool sessions. Valuables should be stored in a locker. Advance reservation is required and arrivals without a booking will not be admitted. Slippers are recommended throughout and can be purchased at reception if not brought from home.