Join a guided minibus or 4x4 tour to Etna for lava flows, craters and panoramic views—tours typically operate 8:00am–4:00pm in summer and must be booked in advance.
From the ferry port take local transfer to the nearest rail junction (Pozzallo/Modica) and connect to the intercity train to Rome; expect several connections.
If you didn’t visit yesterday, do a focused visit to Sagrada Família (book tickets; open ~9:00am–7:00pm) or Park Güell (tickets required for the monumental zone).
Begin the multi‑leg rail journey to Paris — typical route involves Lisbon→Madrid then Madrid→Paris high‑speed; book connections in advance for July travel.
Long‑haul flight back to Sydney; flight times and carriers vary—book an overnight or daytime flight that suits your preferred arrival time in Australia.