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Thermal baths in Brussels

Also spelled Bruxelles, Brussel

Sauna complexes on the edge of Brussels: Thermae Boetfort on a 400-year-old castle estate at Melsbroek, Thermae Grimbergen, and Thermen Dilbeek on the city's western side. Boetfort and Grimbergen each run a nude section and a completely separate swimwear section on one ticket, while Dilbeek is textile-free throughout, every day. The pools are heated, with outdoor pools at 32 °C at Boetfort and Dilbeek and a natural swimming pond in Grimbergen's nude garden.

  • Baths3
  • Water32°
  • Hot rooms80 to 90°
AntwerpenGentCharleroiNamurMonsMelsbroekGrimbergenDilbeek
Map data: Natural Earth

Baths in Brussels compared

Entry, swimwear rules, age limits and ticket type, side by side.

BathEntrySwimwear and rulesAgeTickets
Thermae BoetfortMelsbroek
  • Entry to the public baths (Mon to Fri)€40.90
  • Entry to the public baths (Sat, Sun, public holidays, long weekend)€45.90
  • Multi-visit pass (10) Thermae Boetfort€380
Two separate sections on one ticket, every day: Moenia is the nude area, where "bathing clothing is strictly forbidden"; Curia is the swimwear area, where swimwear is compulsory. The operator says the two sections and their terraces are completely separate; only the changing area is shared, with a private cubicle in every row of lockers. Men in the swimwear area wear short, fitted trunks only (no loose or long shorts); women wear a swimsuit or bikini. Sit on a full body-length towel in the saunas. Mixed throughout; no single-sex sessions published.10+Day ticket
Thermae GrimbergenGrimbergen
  • Entry to the public baths (Mon to Fri)€35.90
  • Entry to the public baths (Sat, Sun, public holidays, long weekends)€38.90
  • Multi-access card (10) Thermae Grimbergen€325
Two separate sections on one ticket, every day: Aquarius is the nude area, where "swimwear is strictly forbidden"; Sabai is the swimwear area. Only the changing area is shared, with a private cubicle in every row of lockers. Men in the swimwear area wear short, fitted trunks only; women wear a bikini or swimsuit. Sit on a full body-length towel in the saunas. Mixed throughout; no single-sex sessions published.10+Day ticket
Thermen DilbeekDilbeek
  • 1 toegang tot de thermen [single entry to the baths]€39.50
  • 1 Kind vanaf 0 jaar < 12 jaar [child, 0 to 11]€33.50
  • 10 beurtenkaart thermen [10-visit card]€335
Textile-free throughout, every day: "Badpak, bikini of zwembroek zijn niet toegelaten" (swimsuit, bikini or trunks are not allowed). Bathrobe and towel only in the baths area; a towel under the whole body in the sauna; bathrobe compulsory in the bar, restaurant and on the terrace. Mixed, no single-sex sessions published. The house rules say first-time visitors may be asked to come as a couple and must tell reception it is their first visit.none statedDay ticket

Every bath in Brussels

Open all year unless the hours say otherwise.

  1. Thermae Boetfort

    Spa bath, Melsbroek · No wheelchair access to the baths (historic estate). Phones and cameras not allowed in the baths.

    A sauna and spa complex on the 400-year-old Boetfort castle estate, split into a nude section with five saunas, including the Ice Cave Sauna in the castle's former ice cellar, and a separate swimwear section with a 32°C pool.

    Sauna includedSteam room included

    Hot rooms55 to 80°Water32°€40.90As of Oct 2026
  2. Thermae Grimbergen

    Spa bath, Grimbergen · Phones and cameras not allowed in the baths.

    A family-run sauna and spa complex on the edge of Grimbergen, with nine saunas split between a nude section (Aquarius) and a separate swimwear section (Sabai).

    Sauna includedSteam room included

    Hot rooms55 to 85°€35.90As of Oct 2026
  3. ATL Location, Wikimedia Commons · CC BY-SA

    Thermen Dilbeek

    Spa bath, Dilbeek · Phones stay in the changing room; photos and filming forbidden.

    A textile-free sauna complex in Dilbeek on the western edge of Brussels, with an outdoor pool heated to 32°C all year, a 19°C indoor cooling pool and cooling tubs set in the garden's ornamental pond.

    Sauna includedSteam room included

    Hot rooms60 to 90°Water32°€39.50As of Oct 2026

Questions about Brussels

Are the Brussels sauna complexes nude or swimwear?

It depends on the place. Thermen Dilbeek is textile-free everywhere: swimsuits, bikinis and trunks aren't allowed, a bathrobe is compulsory in the bar, restaurant and on the terrace, and first-time visitors may be asked to come as a couple. Thermae Boetfort and Thermae Grimbergen each have a nude section (Moenia at Boetfort, Aquarius at Grimbergen) and a swimwear section (Curia and Sabai) on the same ticket, sharing only the changing area. In their swimwear sections men wear short, fitted trunks only, and at all of them you sit on a full body-length towel in the saunas.

Can children go to the Brussels sauna complexes?

Yes, at different ages. Thermae Boetfort and Thermae Grimbergen admit children from 10 with a parent, who signs a document on arrival, and the child needs proof of age such as a Kids-ID or passport. Thermen Dilbeek takes children of any age with a parent under constant supervision, textile-free like everyone else, with swim nappies compulsory up to age 5.

How hot are the saunas around Brussels?

Between 55 and 90 °C. Dilbeek's Ranta Aufguss sauna runs at 90 °C and its bio sauna at 60 °C. In Grimbergen's nude area the Wood, Kelo and Black Forest saunas reach 85 °C, and at Boetfort the Sauna of Whispers and the underground Mine sauna run at 80 °C. The swimwear sections are milder: 55 to 70 °C at Boetfort and 70 to 75 °C at Grimbergen.

Can you take a phone into the Brussels thermae?

No. Phones and cameras aren't allowed in the baths at Thermae Boetfort and Thermae Grimbergen, and at Thermen Dilbeek phones stay in the changing room, with photos and filming forbidden.