Sofia is modern boat of 6.5 meters with an engine of 115 horses , possess of pleasure craft navigation license bearing the CE marking . Sofia Excursions offers guests guided tours to the caves of Polignano a Mare , departing from Cala Fear of Polignano and the new marina , Cala Ponte . The Sofia drivers , navigators and experts who know the area , with their smiles and their kindness will accompany you on many of the most beautiful views of the coast and small secluded coves , perfect places to swim, snorkel or just sunbathe .