Catania is Sicily's cheapest major city: granita and brioche costs €3, arancini €1.50, and the entire Baroque centre — squares, churches, lava streets — is free to walk. Three days here run on street food, city buses and volcanic views that never charge admission.
The 1736 lava elephant 'u Liotru' carrying an Egyptian obelisk sits free in the open square. Cattedrale di Sant'Agata next to it charges nothing to enter (roughly 07:00–12:00 and 16:00–19:00); only the treasury and crypt ask a fee.
Vaccarini's black-and-white Baroque church on Via Vittorio Emanuele II is free to enter, and the rooftop dome walk costs about €3 — the cheapest paid panorama in Catania, looking straight over the Duomo cupola to Etna.
Catania's 19th-century public park at the top of Via Etnea, open free from sunrise to sunset. The floral clock, banyan avenue and the upper terrace 'salottino' give a no-cost bench view down Via Etnea with the volcano closing the horizon.
A 2nd-century amphitheatre sunk below street level in black lava blocks, visible in full from the free railing above the excavation. The staffed descent into the tunnels is free when open, usually 09:00–13:00 on weekday mornings.
The Monday-to-Saturday morning market behind the Duomo, roughly 07:00–14:00. Wandering the swordfish and sea-urchin stalls costs nothing; a paper cone of fried fish from the surrounding fry stalls runs €5–7.
The 1897 rosticceria opposite Villa Bellini sells the Catanese arancino a punta filled with ragù or butter and ham for around €2.50, plus cipolline and pizzette under €2. Standing at the counter avoids table charges entirely.
Catania's sprawling weekday produce and clothing market, mornings until about 14:00, with stalls lingering after. Tomatoes, Bronte pistachios, olives and almonds sell by the kilo far below supermarket rates — a picnic for two under €6.
The bars ringing Frederick II's lava castle pour local Nerello Mascalese by the glass for €3–4, usually with free bar snacks. The castle courtyard and moat outside are free to walk around at any hour.
The narrow-gauge railway circling Mount Etna leaves Catania Borgo station on Via Caronda. A single to Randazzo through lava fields, pistachio groves and Bronte costs roughly €7 — the cheapest way to ride around an active volcano.
Catania's 18km sand beach reached on AMT bus line for €1.20. Between the paid lidos sit signed 'spiaggia libera' sections with no entry fee, no umbrella charge and showers — bring your own towel and shade.
The basalt sea stacks Polyphemus hurled at Odysseus, reached by AMT bus 534 from Catania for about €1.20 each way. Swimming off the black lava platforms below the harbour is free, and the water over the rock is glass-clear.
Europe's second-largest Benedictine monastery, now the university humanities faculty. The lava-stone courtyards and cloister corridors can be walked free during university hours; only the guided tour carries a charge.