There’s not a sea the passenger e’er pukes in,
Turns up more dangerous breakers than the Euxine.

George Gordon, Lord Byron (1788-1824) English poet

Don Juan, Canto 5, st. 5 (1821)
    (Source)

The Euxine is the Black Sea, from the Greek Pontos Euxeinos, which means (ironically) "the hospitable sea."