Passing through the Clashing Rocks (thanks on the advice of Phineus, the pilot skills of Tiphys, and also the help of Athena), they enter the Black Sea and get there at a deserted island, Thynias, where they notice Apollo traveling overhead on his way north to visit the Hyperboreans. https://financefeeds.com/cryptofriendly-presidents-the-role-of-political-leadership-in-driving-copyright-adoption-and-innovation/