New research by Jordan’s Cereals revealed the average Brit spends only 26 hours a week outside.
The poll, undertaken by Jordan’s Cereals, said throughout an adult lifetime a person would spend 53 years indoors with just one decade outdoors.
Nearly half of Brits said they did not have the time or opportunity to venture out, with 15 per cent suggesting they had nowhere picturesque nearby.
A further 47 per cent said they could not remember the last time they set foot on a farm and more than one in ten said they could not afford the costs of travelling to the countryside.
Alex Murphy, marketing manager at Jordan’s Cereals said: “We are passionate about helping the UK form a closer bond with nature.
“Whether it is a five-minute stroll, a trip to your local park or somewhere further afield, we hope Brits are encouraged to get out there into the great outdoors as much as possible.
“We are also doing our bit by working with our farms to ensure they are sustainable, supportive of wildlife and have the least possible impact on our great outdoors.”
According to the survey, the typical adult spends twice as long outside in summer than they do in winter, due to the unpredictable nature of the British weather.
It found 85 per cent would like to spend more time in the open air, but seven per cent had ‘no idea where to go’.
It follows the launch of the Jordans Farm Partnership in 2016 – a collaboration between Jordans’ 42 oat farmers, Linking Environment and Farming (Leaf), The Prince’s Countryside Fund and The Wildlife Trusts – to improve sustainability, support British wildlife by giving more than 10 per cent of working farmland to wildlife conservation, and to support rural communities.