Since 2009, I have done hundreds of one-way walks through the countryside around Bristol without driving. Some start from my home in the city centre. Most have used a combination of buses and trains. The spreadsheet and gpx files below give more information, if you want to give it a try.
This spreadsheet lists 100 different combinations of starting and finishing points for walks, by train, train and bus, or direct bus from central Bristol.
*Please note: when following a route walked by someone else, you must ensure your own safety. I try to avoid busy roads, but sometimes they are unavoidable. I also try to stay on legal rights of way, but I may sometimes deviate because the path was blocked or unclear, or I was trying to avoid a hazard such as bulls or cows with calves!
If you don’t know how to import a gpx file into a mapping app, it’s very easy, as explained in this video. It uses Outdooractive, a free mapping app, which you can download from the Google Playstore.