Langham's hotel spa brand, Chuan Spa, is to celebrate Earth Hour on 28 March with a number of environmental initiatives.

Earth Hour, which was devised by the World Wide Fund for Nature (WWF), asks people to turn off their lights for one hour and is expected to be celebrated by more than one billion people around the world.

Chuan Spa staff will offer signature massages with light provided by environmentally-friendly chemical-free soy candles, with 10 per cent of all proceeds going to the WWF. Details: langhamhotels.com