Book ahead for a spa treatment (from €50) beneath these grand neo-Byzantine domes. French speakers can join 45-minute guided tours (adult/child €4/3) to admire gold-leaf-dappled tile work and sip the reputedly healing water – brace yourself for a warmish, metallic-flavored mouthful.
The Thermes are also open during school holidays in February or March; check with the tourist office.
