Rougo ni Sonaete Isekai de 8-manmai no Kinka o Tamemasu - Vol. 11 Ch. 70 - Imprisoned Tricksters - Part 1

[MangaDex]

 

[DanYHKim]

It is fortunate that all of those sailors could swim. Many British sailors, "recruited" by impressment, never learned how to swim, and would drown under such circumstances. It cannot be assumed that all hands on a ship, even a military vessel sent as a preliminary invasion force, would be able to swim.