The Sea of Voices quivers, like the skin of a drum slapped by a city-sized hand. The movement sends your ship a dozen feet into the air, splashing back down violently into the black water. The crew scream and pray as the waters return to normal.
A few blessedly quiet days. Well, except for the Voices. Your wake trails back to the horizon, and the crew are concerned only with their sewing and their next tattoos. Those other captains know nothing!