This is the 3263rd most frequent Russian word.
окрестностях
"Vicinity" or "surroundings."
In this sentence, 'окрестностях' designates the areas surrounding the village, indicating the nearby locations where the castles can be observed.
В окрестностях деревни видны старинные замки.
In the surroundings of the village, ancient castles are visible.
Here, 'окрестностях' again identifies the area around a reference point, serving to describe the location where the rare plants are found.
На этих окрестностях можно найти редкие виды растений.
In these surroundings, one can find rare plant species.
The word 'окрестностях' refers to 'surroundings' or 'vicinities' in this sentence, providing a spatial context to where the walking took place.