A two-hour spa session at Thermae Bath Spa costs from about £42.50 Monday to Friday and £47.50 at weekends, including robe, towel and slippers. This is the modern spa where you actually bathe in Bath's naturally warm mineral water, fed by the same hot springs as the historic Roman Baths next door, and the open-air rooftop pool overlooking the city is the reason to come. Book ahead.
If the Roman Baths is the history you look at, Thermae is the water you get into. Here's what a visit involves.
What it costs and what's included
The standard ticket is the two-hour spa session: from about £42.50 on weekdays and £47.50 at weekends, with robe, towel and slippers included. Longer sessions, twilight slots and packages that add treatments or food are available at higher prices. Prices checked August 2026; book online in advance, as popular slots sell out, especially at weekends and over the festival and Christmas-market periods.
What to expect
The main building is the New Royal Bath, and a session gives you access to:
- The rooftop pool, open-air and naturally warm, with views over the Abbey and the Georgian rooftops. This is the highlight, and best at twilight or early in the day before it fills.
- The Minerva Bath, the large thermal pool on the ground floor.
- The Wellness Suite, a circuit of steam rooms (including aromatic ones), an ice chamber and showers.
Bring a swimming costume; robe, towel and slippers are provided. It's a relaxation spa rather than a swimming pool, so it's calm, warm and unhurried.
Thermae or the Roman Baths?
People mix these up constantly, so plainly: the Roman Baths is a museum where you view the ancient baths but cannot enter the water; Thermae Bath Spa is where you bathe. They're a couple of minutes apart and fed by the same springs. Many visitors do both, the Baths for the history and Thermae to actually soak. We compare them in full in Roman Baths or Thermae?.
The honest alternative
A full two-hour session is a treat rather than a cheap outing. If the price doesn't suit, the Roman Baths (from about £27.50) gives you the history for less, and the free rooftop view from Alexandra Park shows you the same skyline you'd see from the pool, minus the warm water. But if you want the genuine experience of bathing in Bath's thermal water, this is the only place to do it. If what you actually want is a proper swim rather than a soak, see swimming in Bath for where that's possible. For the wider trip, see things to do in Bath.
FAQs
How much is Thermae Bath Spa?
A two-hour spa session is from about £42.50 Monday to Friday and £47.50 at weekends, including robe, towel and slippers. Longer sessions and treatment packages cost more. Book online in advance, as slots sell out at busy times.
Can you actually bathe at Thermae Bath Spa?
Yes. Unlike the Roman Baths, which is a museum you view, Thermae Bath Spa is where you bathe in Bath's naturally warm mineral water, including the open-air rooftop pool and the indoor Minerva Bath.
What is included in a Thermae Bath Spa session?
A standard two-hour session includes access to the rooftop pool, the Minerva Bath and the Wellness Suite of steam rooms and ice chamber, plus robe, towel and slippers. You just bring a swimming costume.
Is Thermae Bath Spa or the Roman Baths better?
They're different: the Roman Baths (from about £27.50) is history you look at; Thermae (from about £42.50) is warm water you bathe in. Choose by what you want, and note that many people do both in a day.