を巡る

to go around; concerning

→ を
phrase Rare #39,077
to go around; concerning Used for traveling around or visiting places, and figuratively for something concerning or involving a particular issue.
JA: 週末は京都のお寺を巡る予定です。
EN: I plan to visit temples around Kyoto this weekend.

私たちの警備員がこれほど優秀だったら…こんなに色々な王国を巡ることもなかった。

If our guards had been this good… we wouldn’t have had to travel through so many different kingdoms.

— バーフバリ 伝説誕生 (2015)

お城を巡るのが趣味です。

My hobby is touring castles.

シャドウズ号は二つの島を巡る図書館航路に出ていた。

The Shadows was sailing a library route that stopped at two islands.