The Bath Skyline walk is a moderate 6 mile, 3-4 hour loop that takes in views over the City of Bath and the surrounding countryside. With 800ft of elevation it shouldn’t be underestimated and sturdy shoes are definitely recommended.
For further details, including the route, see this Nation Trust URL: https://www.nationaltrust.org.uk/visit/bath-bristol/bath-skyline/bath-skyline-walk