The giant snow-producing swings and see-saw will be installed in Canary Wharf from 7 to 9 January and Finsbury Avenue Square from 10 to 11 January.
Both will feature kinetically triggered snow machines, which will reward workers with snow showers – the more they play, the more it will snow.
Evian’s campaign aims to get the British public smiling by helping them rediscover their forgotten youth.
Havas International designed and installed the playground apparatus.
Laura Pope, brand manager at Evian, said: "Evian’s giant playground installations are the perfect way to help stressed workers get in touch with their ‘live young’ spirit by letting go and having fun.
During the campaign, Evian’s Facebook hub, managed by We Are Social, will share a different way to live young each day throughout January, as well as a competition to win a Northern Lights igloo experience in Lapland.
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