Vasa Loch
 Vasa Loch is a brackish lagoon in southwestern Shapinsay Orkney Islands. (Ordnance 2002) This water body has been shown on early maps of the island in a very similar shape and size to its current geometry separated from the North Sea by a narrow strip of raised beach.(Masters 1840) Vasa Loch is fed by small rivulets and upland springs that rise on the western part of the island's western spur. pH levels of the loch are strongly alkaline in the range of 10.15. (Hogan 2006)