Gosaera is only 1½ miles long and less than ½ a mile wide. It is oriented so that its greatest length runs north/south. The northern half of the coastline is surrounded by sandy beaches, the southern half is rocky.
It is home to the Gwaedeth.
|Ceasaer | Saern | Rydon | Serch | Gosaera|
|Caethw | Brychaen | Báreyn | Ynys Lárec | Casaereth | Mancaeareth | Ynysaw Ysceyr|
|Elaeneth | Samonios Islands|