Italy's islands are close enough to hop between — if you know the ferry schedules. The Aeolian Islands (7 islands, connected by hydrofoil). The Bay of Naples trio (Capri + Ischia + Procida, 20-50 min apart). The Egadi Islands (3 islands off western Sicily). The Pontine Islands (Ponza + Ventotene, from the Lazio coast). Each archipelago is a 3-7 day adventure connected by ferries.
Base ferry port: Milazzo (Sicily, 30 min from Catania airport by car/bus). Day 1-2: Lipari (the "capital" — castle, pumice beaches, archaeological museum, nightlife). Day 3: Vulcano (ferry 10 min — crater hike morning, mud baths afternoon). Day 4: Salina (ferry 30 min — capers, malvasia wine, Il Postino beaches). Day 5: Panarea (hydrofoil 30 min — tiny, exclusive, prehistoric village). Day 6-7: Stromboli (hydrofoil 45 min — volcano eruptions every 15 min, night hike or boat viewing, black sand beach). Ferries: Liberty Lines hydrofoils (€12-25 per hop, 4-6 daily between islands).
Base: Naples (Beverello port). Day 1-2: Capri (hydrofoil 50 min — Blue Grotto, Faraglioni, Villa Jovis, Marina Piccola swim). Day 3: Ischia (ferry from Capri 50 min or Naples 1h — Negombo/Poseidon thermal gardens, Castello Aragonese, Maronti beach). Day 4: Procida (ferry from Ischia 20 min — pastel houses, Marina Corricella, Il Postino locations, lunch at seafood trattoria on the harbor). Day 5: Return to Naples (ferry 40 min). Ferries: SNAV, Caremar, NLG (€12-25/hop, frequent schedules April-October).
Base: Trapani (Sicily). Day 1-2: Favignana (hydrofoil 25 min — Cala Rossa tufa swimming pool, rent a bike to explore, tuna history). Day 3: Levanzo (hydrofoil 15 min from Favignana — Grotta del Genovese prehistoric cave paintings, crystal-clear swimming). Day 4: Marettimo (hydrofoil 30 min — the wild one, hiking trails, sea caves by boat, almost zero tourists). Ferries: Liberty Lines from Trapani (€10-15, multiple daily).
Base: Formia or Anzio (Lazio coast, 1-2h from Rome). Day 1-2: Ponza (ferry 2.5h from Formia — pastel village, grottos, Chiaia di Luna beach, boat tour around the island). Day 3: Ventotene (ferry 1h from Ponza — Roman harbor carved from volcanic rock, diving, Augustus-era cisterns, tiny and authentic). Return to mainland. Ferries: Laziomar (€15-25, 2-4 daily summer).