I met these beautiful colonies of Parazoanthus axinellae during a snorkeling activity in the coastal caves of the island of Pantelleria. In my experience as a diver I have never encountered these sea daisies at almost surface level; evidently in this case the colony of Parazoanthus axinellae has found particularly favorable environmental conditions of light and sea currents

They are often hot springs rich in mineral salts with varying temperatures. These thermal waters originate from the groundwater which, descending in depth, meet the hot rocks or are due to the condensation of the steam generated by the encounter of the water with the hot rocks.