I did suggest last week that I would post a map of my intended ride into the Bewcastle Fells. However, I have just read the latest advice from CUK. It's quite long and detailed but particular relevant bits include:
"Instead, we should take the opportunity to seek out quiet and uncrowded places to cycle close to home, preferably places we can cycle to from our own doorstep."
"Our advice is to go out for long enough to keep yourself in good shape physically and emotionally, but avoid doing more than this. Use common sense when planning your route: for example, ride a loop close to home rather than a long out-and-back route, so that in case of a mechanical you should be able to walk home unaided."
"Anyone doing so should observe recommended social distancing and hygiene advice and also take even more care than normal to make sure they don’t put further pressure on the emergency services.
For the full detail follow this link for Cycling UK's latest advice.