This is the one we save for genuinely miserable weather, because it turns a washout day into one of the best things you’ll do on your trip. Thermae Bath Spa is the only place in the UK where you can bathe in naturally warm, mineral-rich spring water, and the rooftop open-air pool is the highlight — soaking in warm water with the rain coming down and the city’s skyline and abbey towers visible all around you is genuinely one of Bath’s best experiences, wet weather or not.
There’s an indoor Minerva Bath too, along with steam rooms and treatment options if you want to make a proper half-day of it. Booking ahead online is strongly recommended, particularly for weekend sessions and the popular twilight package, as walk-ins aren’t always guaranteed a spot.
It’s an easy recommendation for couples wanting a relaxed, indulgent stop, and works well for corporate guests wanting to properly unwind after a stretch of meetings. It’s a short walk from the Roman Baths and city centre, so it combines naturally with a morning of sightseeing followed by an afternoon session. Bring your own towel and swimwear to keep costs down, or hire on-site if you’d rather travel light.
