I took this photo in Tuscany, along the Argentario coast at a di- ve spot called the Scoglio del Corallo. In this area there are several caves rich in benthic life. On the bottom of one of them, at a depth of 30 meters, lives a large Ceriantus. To take the shot I turned off the flashes and backlit the subject with a fixed light, making use of the ambient light. My wife Susanna completed the shot.