Zairon

Streymoy (Danish: Strømø) is the largest and most populated island of the Faroe Islands. The name means "island of currents."

Navigatio Brendani 9.15: 

vigiliās vērō et missās crās in illā īnsulā, quam vōs vidētis, prōposuit vōbīs Deus celebrāre suae resurrēctiōnis.

From a hill on the island of Sandoy (perhaps) the stranger points out an island in the distance, perhaps Streymoy in the north.