Water-Ma-Trout is a road and an industrial estate on the northern edge of Helston in west Cornwall, England.
Theories about its name are:
A range of industries are based around the estate, such as the scuba gear factory AP Diving and Helston Gunsmiths.
Google Earth view
50°06′46″N 5°16′12″W / 50.1129°N 5.2701°W