It’s the second day of the OutClub’s Izu trip. They go to Dougashima Island and walk across the tombolo, and put on a surprise birthday party for Nadeshko and Aoi at the end of the day.
We'd better go back before 
we get caught by the high tide.
من الأفضل أن نعود قبل أن يبدأ المدّ المُرتفع
Wenn die Flut kommt,
sind wir hier gefangen.
La marée haute
risque de nous coincer !
Meglio tornare, prima che risalga la marea...
Se vier a maré alta,
vamos ficar presas aqui.
Когда вода поднимется, 
мы назад не попадём.