Accor enabled staff to spend a day away from work to carry out environmental work at a community nature reserve at Bethnal Green, North London.
The firm which runs hotels such as Sofitel, Novotel and Ibis, allowed head office staff to tidy overgrown weeds and trees, make and install bird boxes, plant wildflowers and hang animal signs made by local school children.
It is hoped this will boost the numbers of beetles, birds, foxes, frogs, plants and butterflies in the reserve.
This is part of a worldwide campaign known as International Earth Guest Day. Accor mobilised approximately 150,000 staff across its hotels and services groups in 100 countries to take part in local development, health and environmental initiatives.