The thermal springs at Bath are the only naturally occurring hot springs in the British Isles. Rainwater falling on the nearby Mendip Hills sinks deep underground, where geothermal energy heats it to between 64°C and 96°C. It then rises through faults in the limestone to emerge at the surface at around 46°C. The springs produce over a million litres of water per day. Archaeological finds suggest people were drawn to these springs thousands of years before the Romans arrived. The Romans built an elaborate bathing complex around the springs in the 1st century AD, and the Georgian city we see today was built on the same tradition of 'taking the waters'.
“The springs produce over a million litres of water per day.”