Just a 40-minute drive out of central London, you'll find yourself in the leafy Hertfordshire countryside. Five-star retreat, The Grove is somewhere we've deemed too close to home to be safe from temptation mid-week - and it's the hotel's luxurious Sequoia spa of which we're most wary. The menu features 32 different treatments - opt for The Orangery Experience - which take place in the spa's 18 tranquil treatment rooms (those are some good odds for getting the appointment slot you want). After a dip in the vitality pool and jacuzzi, lather yourself in Natura Bissé products, then peep in for a look at the slick fitness studio before sauntering upstairs to change for dinner.
Chandler's Cross Watford Hertfordshire WD3 4TG