Scarpa FlowScapa Flow, Clay Loan, Kirkwall, UK
With the expansion of the German fleet in 1904, the British looked for a naval anchorage in Scotland. The Forth Estuary and Scarpa Flow in the Orkneys were both considered. Little was done to protect Scarpa Flow until the outbreak of war in 1914, but it then became the main home for the British Grand Fleet.
This remote location became one of the most secure naval anchorages with numerous coastal defence batteries.