The most significant islands in the group are:
Orkney's administrative capital is Kirkwall? on Mainland, a small city (due to the [Saint Magnus Cathedral]?) with a large port. The only other sizeable town is Stromness? at the western end of Mainland.
Communications
Frequent ferry services operate on the following routes:
A locally owned cargo service also takes passengers on its services from Kirkwall to Invergordon.
Heritage
The famous Neolithic sites of Skara Brae and Maes Howe are located on the Mainland.