La Secchitella

An offshore seamount in open water off Ventotene, wide open across the W-NW-N arc that catches the Tramontana/Mistral wind-waves and the long Tyrrhenian fetch. The island sits to the east and south, so its bulk shadows the whole landward E-through-SSW arc — deepest into the Scirocco (ESE-SSE) — while the Libeccio (SW) is only partly checked and still pushes swell onto the secca. Being away from the coast with no headland to break it, current and surface chop build quickly when the western and northerly winds blow.