Are geothermal features such as steam vents as seen at Sulphur Springs in Saint Lucia and Dominica, actually volcanoes?

Hot springs and fumaroles are not volcanoes. They represent small cracks where hot water and steam escape at the surface. They often occur in volcanic areas, where they can be found in the vent, on the slopes, and in the surrounding countryside, miles away from the volcano! For example, the Sulphur Springs in Saint Lucia is part of the much larger Soufriere Volcanic Centre. It is not the volcano.