Sicily · Catania
Aci Castello
A coastal town just north of Catania on the Riviera dei Ciclopi, where the basalt headland holds the 1076 Norman Castello d'Aci and the seven volcanic Faraglioni dei Ciclopi rise from the sea — the rocks the Cyclops threw at Odysseus in Homer's Odyssey.
Known for
NORMAN CASTLE
Castello d'Aci on a 25,000-year-old basalt sea-stack from an underwater Etna eruption — built by Roger I of Sicily, 1076.
CYCLOPS' ROCKS
The seven basalt sea-stacks Homer's Polyphemus threw at Odysseus — now a marine reserve.
VERGA COUNTRY
Aci Trezza frazione — setting of Giovanni Verga's I Malavoglia (1881), the canonical Italian verismo novel.
When to visit
Best · Apr–Oct
- J
- F
- M
- A
- M
- J
- J
- A
- S
- O
- N
- D
- Best
- Hot or crowded
- Quiet
- Mostly closed
The festa: Mauro, 15 January
Why come
Aci Castello sits ten kilometres north of Catania on the Riviera dei Ciclopi, where the lava-black basalt coast meets the Ionian Sea. The town's anchor is the Castello Normanno (Castello d'Aci), built in 1076 by Roger I of Sicily on a basalt sea-stack thrown up by an underwater Etna eruption around 25,000 BC; the Aragonese expanded it in the 14th century and it now houses the Civic Museum of Aci Castello. Just offshore stand the Isole dei Ciclopi — the seven basalt sea-stacks that Homer identified as the rocks Polyphemus the Cyclops hurled at Odysseus's ship in Book IX of the Odyssey, and which are now a protected marine reserve.
The frazione of Aci Trezza (the larger fishing village south of the castle) is where Giovanni Verga set I Malavoglia (The House by the Medlar Tree, 1881), the founding novel of Italian verismo. The coastline between Castello and Trezza is a single black-pebble swimming front, with the dramatic profile of Etna rising behind.
The Sunday letter
We haven’t written Aci Castello’s letter yet.
One town every Sunday, with the photo, the food, the festa. Be there when this one comes up. Free, by Peter & Sophia from Pietrasanta.
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What to see
Castello Normanno di Aci
1076 Norman castle on a basalt sea-stack thrown up by an underwater Etna eruption c. 25,000 BC. Aragonese expansion 14th c. Houses the Civic Museum with the stratigraphic and natural-history collections.
Isole dei Ciclopi
Seven basalt sea-stacks offshore — Homer's Cyclopean rocks from Odyssey Book IX. Now a protected marine reserve (AMP Isole Ciclopi), with snorkelling tours from Aci Trezza.
Aci Trezza — terra di Verga
Fishing-village frazione where Giovanni Verga set I Malavoglia (1881), the founding novel of Italian verismo. The old harbour and Casa del Nespolo museum trace the literary setting.
Lungomare lavico
Black-pebble swimming front between Castello and Trezza, the basalt coast contrasted against Etna's snow-cap on clear days.
The slow-trip planner
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Living here
- Population 17,852
- In-betweeni
- Pharmacy in town
- High school within a 30-minute drive
- Train station in the comune
- Nearest airport Sicily, 22 min drive
- Regional capital Palermo, 2 h 49 min drive
Tags & datadesignations · numbers · sources
Recognised as
The numbers
- Elevation: 15 m
- Population: 17,852
- Surface area: 8.71 km²
These figures were compiled from public directories — ISTAT, OpenStreetMap, Wikidata — and from the official listings of the guides named on this page. Town details change; verify with official sources before you travel.
Close by
More towns near Aci Castello
Giarre
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An Etna town that split from Mascali in 1815 and built a neoclassical duomo, with two bell towers framing the volcano behind it.
Catania
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Sicily's second city and the cultural anchor of the Ionian coast — a UNESCO late-Baroque centro storico rebuilt in lava-black stone after the 1693 earthquake, sitting at the foot of Etna with a 17th-century elephant fountain (U Liotru) as its civic symbol.
Riposto
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The Ionian port whose name comes from the Sicilian for cellar, where the wine of Mascali and Giarre was stored before shipping.
Nicolosi
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Taormina
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A 204-meter terrace above the Ionian with Etna on the southern horizon, a Greek-Roman theatre carved into the rock since the third century BC.
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