When feeling daunted or challenged to run or walk a particular distance, consider winding instead of straight lines. It is probably just psychological, but when running in straight lines it feels as if one need to go quite far, whereas when for example winding through the neighbourhood it is surprising how quickly the steps add up.
During lockdown level 4 in South Africa, from 1 May 2020, we were permitted to leave our homes to exercise between the hours of 06h00 and 09h00, to run, walk or cycle as long as within a 5km radius of our homes. I recall discovering that it would be quite feasible for me to complete a half marathon in the permitted three hours and 5km radius. For a faster runner, a full marathon would easily have been feasible.
My wife and I do neighbourhood patrols as part of an increasing-visibility drive. We often alternate one day walking together with me running solo. We accomplish more visibility, I believe, by winding through the neighbourhood, than going in straight lines. We’re often surprised by the distance accumulated when we wind up and down. It is also easier alternating uphill for some distance with downhill, than to keep going uphill for a longer stretch.
Many of the sidewalks in our area are not really pedestrian friendly, even the pedestrian paths are quite uneven with lots of growth in the cracks. Hiking boots (not even trail running shoes) and tracking poles might be a better option than road running shoes. It is easier to run or walk in the street. However, some of the main artery streets carry significant vehicle traffic, which make it dangerous. This is another reason to rather wind through the quiet streets.