Entertainment District
noun
You'll find delight and comfort in these streets, because you have entered an entertainment district!
歓楽街 refers to an area in a city where many nightlife entertainment venues, like bars, dance clubs, host or hostess clubs, and sometimes businesses offering sketchy red-light adult services, are clustered together.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
黒田はそう言い残すと、歓楽街へと消えていった。
On saying that, Kuroda disappeared into the entertainment district.
歓楽街のツアーには何が含まれていますか。
What does the tour of the pleasure quarter include?
私が歓楽街で働いているという噂の源をつきとめました。
I have traced the source of the rumour that I work in the pleasure quarter.