This is the 14639th most frequent Polish word.
przystankami
"Przystankami" means "by stops" or "with stops" (instrumental plural form of "przystanek," meaning "stop," typically a bus or tram stop).
Here, 'przystankami' refers to multiple bus stops, used in the instrumental case because it is part of a descriptive phrase.
Szliśmy przez park pełen przystankami autobusowymi.
We walked through a park full of bus stops.
In this sentence, the use of 'przystankami' emphasizes their instrumental role in identifying the starting location.
Podróż rozpoczęła się na jednym z przystankami w centrum miasta.
The journey began at one of the bus stops in the city center.
The word 'przystankami' in this sentence is used instrumentally as part of the discussion concerning the elements on the tour route.