The Romans in 43 AD started the development of Aquae Sulis as a sanctuary of rest and relaxation, not a garrison town like most Roman settlements.  It was dedicated to Minerva, goddess of poetry, medicine, wisdom, strategic warfare, commerce, weaving, and the crafts (worshiped today as the goddess of hot tubs). In later centuries, it became known for the healing waters and became Bath Spa.

As for Bath, all history went and bathed and drank the waters there.
― William Thackeray

… it is just the place for young people—and indeed for everybody else, too. I tell him he is quite in luck to be sent here for his health.  …  A neighbor of ours was here for his health last winter, and came away quite stout.
― Jane Austen, Northanger Abbey

A much larger and grander spa complex and temple worship area was here originally, tended to by cadres of slaves who catered to the every whim of their Roman patrons—elegant men and women, who spent the better part of each day socializing and taking meals and comfort in the various pools and treatments.