From A Wiki of Ice and Fire
In the south, the Redwyne Straits and the Arbor divide the Sunset Sea from the Summer Sea to the southeast. North of the Arbor is Whispering Sound with Oldtown, Blackcrown, and Three Towers. Farther north in the Reach along the Sunset Sea are Bandallon, the Shield Islands, and the mouth of the Mander.
North of the Iron Islands is a peninsula of the North which includes the Flint Cliffs, Cape Kraken, and Flint's Finger. The Fever River and the Saltspear flow into Blazewater Bay. North of the peninsula are the coastlines of the Rills and the Stony Shore. Even further to the north are the Bay of Ice and the forests of Bear Island, Sea Dragon Point, and the wolfswood. The Sunset Sea continues north beyond the Wall along the Frozen Shore.
During the reign of Qhored Hoare, King of the Iron Islands, the ironborn controlled the western shore of Westeros from the Arbor to Bear Island, but his gains were gradually lost by his descendents. Lord Dagon Greyjoy attempted to make the lands along the sea subject to the ironborn again, but was eventually defeated by House Targaryen.
A Clash of Kings
A Feast for Crows
During the kingsmoot, Lord Gylbert Farwynd puts his name forth for King of the Iron Islands, supported by three champions who are his sons. He promises to lead the ironborn to lands beyond the Sunset Sea where every man would be a king, but his claims are quickly dismissed.
|“||No one has ever crossed the Sunset Sea to learn what lies on the other side.||”|