There is a waiting time of about 30 minutes to enter the castle.
You might need to wait about half an hour to enter the castle.
Waiting time to enter the castle is about 30 minutes. Is that ok?
"城に入るのに、３０分は待つかもしれない" という日本語は、以下のように英語で説明ができます。
「There is a waiting time of about 30 minutes to enter the castle.」
「You might need to wait about half an hour to enter the castle.」
「Waiting time to enter the castle is about 30 minutes. Is that ok?」
城 castle
３０分 30 minutesやhalf an hourと言います。
入る enter
I hope this will help you.
お役に立てば嬉しいです
イギリス 
