This is the 16168th most frequent Russian word.
районами
"Районами" translates to "districts" or "areas" in the instrumental plural form.
In this sentence, "районами" is used in the instrumental case to describe the areas of the city through which the action of walking occurs.
Мы гуляли между районами города, любуясь архитектурой.
We walked between the districts of the city, admiring the architecture.
Here, "районами" is also in the instrumental case, indicating districts as interconnected entities.
Связь между районами значительно улучшилась благодаря новым технологиям.
The connection between districts has significantly improved thanks to new technologies.
In this example, "районами" highlights collaboration or interaction between districts in an instrumental case usage.