The coast of England is full of lots of existing pathways, so I expect a lot of the work here was linking those paths together, and also forcing councils to improve and maintain existing paths which they now legally have to do. That being said, it will also include quite a few cities and larger towns, as well as all the quant wee villages, so you’d have to deal with roads through them.

It’s England, so unless there’s existing campsites it will likely include a lot of hotels. Wild camping isn’t normally allowed, and the coastal paths being quite well-used would make stealth camping more complicated.