
Switzerland
Baden, 25 kilometres northwest of Zürich, has been a thermal spa destination since Roman times — the hot springs (47°C) that gave the town its name have been in continuous use for over 2,000 years. Fortyseven (formerly Thermalbad & Spa Baden) is the modern centrepiece: a stylish multi-level spa landscape partly built into the historic cave-spa structure, with Finnish saunas, steam rooms, and thermal mineral pools. The Bäderquartier across the river preserves 19th-century Belle Époque resort architecture. Swiss German textile-free norm in saunas; swimwear in pools. A 25-minute train ride from Zürich.
Fortyseven — named for the 47°C spring temperature — is Switzerland's most sophisticated modern thermal spa, built over Baden's Roman-era hot springs. It offers multiple sauna cabins, an outdoor thermal pool, and a rooftop relaxation area overlooking the Limmat valley.
Yes — 25 km northwest of Zurich, 20 minutes by direct train from Zurich HB. Fortyseven sells day tickets without hotel booking and is one of the most popular Zurich-area day spa destinations.
Yes — Baden was Aquae Helveticae in Roman times. The thermal springs have been used for bathing since at least the 1st century AD. The modern Fortyseven sits alongside the 19th-century Badehaus and historic Kurquartier.
In the sauna wing of Fortyseven, yes — Swiss German sauna convention is textile-free inside the sauna cabins. Swimwear is required in the thermal pools and outdoor areas.