What is the aim of the review?
To examine the effectiveness of direct accessing of natural environments in the promotion of health and well-being compared with other forms of ‘exposure’ to the natural environment or with accessing ‘synthetic’ environments. Secondary questions will be addressed as follows:

• Do the benefits vary among different types of natural environment?
• Do the benefits vary among individuals, for instance, of different socio-economic status?
• What are the barriers and facilitators to the natural environment providing health and well-being benefits?