Situated on the mezzanine level of the five-star Corinthia Hotel, just off Trafalgar Square, is the ESPA Life day spa. A shiny, monochrome labyrinth of treatment rooms, steam rooms, saunas and thermal pools, the spa is thoroughly lavish, modern, low-lit and windowless. It's the ideal place to shut the door on reality – there's absolutely no chance of spotting the 388 shuttling down Victoria Embankment or tuning into the sound of protesters underneath Nelson's Column.
Through the elegant reception, which opens on to small but stylish cream-washed restaurant, filled with white leather furniture and warmed by a roaring fireplace you'd only see in the lair of James Bond villain, visitors weave their way through corridors of pearly cream and slate paneling to find the luxurious changing rooms (the term 'changing rooms' seems an insult) and a room of 'Sleeping Pods'.
Downstairs, the spa's main area, the Thermal Suite, is a black-marbled oasis which houses a large steam room, swimming pool, jet pool, ice fountain, heated loungers and, most stunning of all, a glass-walled sauna amphitheatre as its centre piece.
If you can tear yourself away from the Thermal Suite for longer than just a toilet break, one floor up ESPA relaxation treatments on offer include personalised massages (£160), body wrap packages (£220) and facials (£170). If it's more than indulgent respite from your emails that you're after, specialist skills from the crème de la crème of naturopaths, traditional Chi