A really good heat treatment is good for the body, but most of the time you spend it in closed rooms. If you’re looking for fresh air, a real fire, and a direct view of the water instead, there’s a great alternative in the second district. In the middle of Marina Wien, a compact wooden hut gently rocks on the waves. This is the “Sauna Boat Verein Wien”—a fully functional boat that will really make you sweat. The association’s goal is to promote physical and mental health through a relaxing sauna and bathing culture.
Wood-fired stove, birch brooms, and room for 8 people

The concept does away with electric radiant heaters and relies instead on a massive wood-burning stove. This creates a very intense heat environment and the robust scent of burning logs. The spacious cabin comfortably accommodates up to 8 people.
When temperatures are really high and you’re at your limit, cool off on the open-air terrace or jump straight into the cool Danube via a ladder. Traditional infusions with birch brooms or honey-salt scrubs, performed by a professional, provide an extra level of relaxation.
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Anyone who needs to catch their breath after the heat shock can sit in the cabin’s foyer. Here, a cozy tea area with a traditional samovar awaits. The boat is also equipped with a shower and a composting toilet.
A trip on the water or a club evening

This spa isn’t just moored rigidly at the dock; it actually glides across the water during your stay. You can rent the floating sauna as a private group for 200 euros per hour (bookable for a minimum of three hours), while the skipper navigates to tranquil lagoons.
🧖♀️ Sauna Boat Verein
📍 Address: Handelskai 343 (Marina Wien), 1020 Vienna
⏰ Opening hours/dates: Flexible times by prior online booking (available daily)