Passing through the Clashing Rocks (thanks for the advice of Phineus, the pilot competencies of Tiphys, as well as the help of Athena), they enter the Black Sea and arrive at a deserted island, Thynias, where they observe Apollo traveling overhead on his way north to visit the Hyperboreans. https://financefeeds.com/dukascopy-marks-anniversary-by-looking-back-at-20-years-of-success-in-fx/