They are literally two volcanic plugs. A volcanic plug is also termed a volcanic neck or lava neck and is a volcanic landform created when magma hardens within a vent on a currently active volcano. One of two things can happen when these are forming. Firstly, the plug could potentially cause an extreme build-up of pressure and lead to an explosive eruption. Alternatively, if the plug is preserved, the erosion resistant plug remains, producing a distinctive upstanding landform. An example of this is the Pitons of Saint Lucia.
There remains to this day sulphur springs and hot mud pools in the nearby Soufriere Caldera, which is visible remnants of former volcanic activity.
St Lucia’s Pitons are some of the most famous landmarks in the entireCaribbeanregion. This is due to their majestic like quality of rising out of the waters and stretching far beyond into the heavenly skies. They represent the brilliance of nature and her mighty show of spectacular serenity.