from ordinance survey and information from 0penstreetmap and local authorities. one of the surprising things about scotland as it is actually harder to find places to walk than you might imagine. we've got all this amazing green space around us, but actually, if you pick a paper map, you might really struggle to find a path you want to walk. so one of the things we are trying to do with the scottish paths map is actually to make those places easier to find for everybody, wherever they live. how many paths do you think are out there for people to discover that aren't on the map? so, we've discovered something like 20,000 new paths in the short time we've been running the project already. i think that probably we could easily double the number of paths that people have to walk in scotland when they look at this map, compared to many traditional maps. we've hoovered up all the open—source data, all the data we can get from partners, but now we are working with 300—plus fabulous volunteers to discover more paths, but also, to record information about all the paths that we discover.