This won SpaFinder's Reader's Choice Best UK Spa earlier this year, which Cassandra puts down to its 'incredible location, luxurious accommodation and great range of outdoor activities, including golf, horseback riding and tennis'. Anna is also a fan. 'It is a triumph of design. From the changing rooms to the vitality pool, every detail has been carefully thought through and hotel guests are only allowed entrance if they have booked a treatment. This keeps the spa as a peaceful haven.'
Auchterarder, Perthshire, PH3 1NF
Spa breaks from £255 per night for two (sharing), including a 55-minute spa treatment pp and B&B, expedia.co.uk