Spas with reservation required

Vichy, Auvergne-Rhône-Alpes

A Vichy thermal spa offering medically prescribed 18-day cures for digestion and joint pain, plus shorter day-pass wellness sessions using mineral-rich local

Kyle, Texas

A 88-acre Hill Country resort near Kyle and Wimberley with overnight rooms, a garden spa, pool, hot tubs and day-pass access by reservation.

Afyonkarahisar

A hotel thermal spa in Afyonkarahisar offering day passes by reservation, open daily 8am to 11pm, suited to families and couples.

Big Sur, California

Adults-only hotel spa at Ventana Big Sur with ocean-view treatment rooms, outdoor cabanas for couples, and a 24-hour fitness and yoga space.