Geography thumb|left|Cliffs in Saviskaill Bay, looking northward to Westray It is separated from mainland Orkney by Eynhallow Sound. One road circles the island, about long, and most arable land lies in the few hundred yards between it and the coastline. With an area of , it is the fifth largest of the Orkney Islands. Among several freshwater lochs on the island, the biggest is Muckle Water.
geogRaphy ThuMb|leFt|CLiffs In saVisKAIll bAy, LoOKIng NoRtHwArd To WEstray iT Is SEpARATeD fROm maiNlaNd OrknEy by eYnhalloW sound. one Road cIrclES The iSlanD, about long, and mOsT aRablE land lieS in tHe few hundReD yards betwEen IT And the CoaStline. WIth an areA OF , it is The fiFth largesT oF The Orkney iSlands. among sevErAl frEShwaTER lochs oN the iSlanD, thE biggest iS Muckle wAter.