Fig. 1From: Neighbourhood and path-based greenspace in three European countries: associations with objective physical activityMaps of Edinburgh, UK to illustrate a Normalised Difference Vegetation Index (− 0.1 to 1.0), b tree cover density (0–100%), and c green land use. Basemap from©OpenStreetMap contributors (www.openstreetmap.org), available under the Open Database LicenseBack to article page