Certification required
Deep
Italy · wreck · advanced
The stern half of a 1899 tanker, mined in 1943, sitting upright on sand at 42 m in the Gulf of Cagliari.
The Romagna was a steam tanker built in 1899, about 70 m long and 10 m in the beam, requisitioned and armed in wartime. On the morning of 2 August 1943, carrying fuel from Arbatax to Cagliari, she struck a mine from a recently laid barrier that had been badly marked to her captain. The fuel in her tanks turned the detonation into something far larger: the bow was torn clean off and went down at once, while the rest of the hull drifted on without steering and sank separately. The two pieces now lie apart on the same sand — accounts put the gap at anything from half a mile to 1.5 km — and it is the stern and midships section, roughly 50 to 60 m of ship, that people mean when they say they are diving the Romagna.
That section sits perfectly upright in sailing trim. The sand is at 42 m; the deck and the superstructures rise to just under 30 m, so most of the dive is worked in the 30-40 m band and boats usually drop the shot on the bridge at about 34 m. On a good day the wreck resolves a few metres into the descent and the whole shape of it is visible at once. The propeller and rudder are still in place, oversized and intact, and the deck carries guns, machine-gun mounts, cargo derricks and the funnel. The engine room, the holds and the wheelhouse can all be entered, and the personal traces of the crew are still inside — suitcases, shoes, bottles, cooking pots.
Biologically the hull has done what Mediterranean wrecks do. Explorers Team, which runs the site from Quartu Sant'Elena, describes it as wrapped in so much anthias, damselfish, picarel and sea bream that the structure is sometimes hard to make out, with large groupers, scorpionfish, moray and conger sheltering in the twisted plate, and heavy settlement of fan worms, sponges and sea squirts across the hull. Dentex and amberjack pass through; dolphins turn up occasionally.
This is not an easy dive. Beyond the depth, currents driven by maestrale or scirocco are common, the water is cold on the bottom — one Italian account records a possible freshwater seep dropping it to around 14 °C even in August — and visibility is good only when the current is off. Stay in no-decompression limits and you have roughly fifteen minutes on the wreck if you are careful with depth, which is why most people dive it twice: once outside, once for the detail.
Deep
Boat only, from Cagliari or the Quartu Sant'Elena side of the gulf. Historical records place the sinking about 6 nautical miles on a bearing of 130° from Cagliari; dive centres describe it as a few minutes out past Capo Sant'Elia, off Capitana, roughly on the line between Capo Sant'Elia and Capo Boi. The shot goes in on the bridge at about 34 m.
Access to the site runs through a local operator.
The wreck lies in the open Gulf of Cagliari, outside any marine protected area — the Capo Carbonara AMP and its permit and zoning rules cover the Villasimius headland well to the east and do not apply here. She is a war grave in the ordinary sense of the phrase: the crew's belongings are still aboard and are left where they are.
The Italian write-up that covers conditions here names September as the best month, when the summer wind pattern has settled and the water is at its clearest. Our own logged dive at this site was in August, at 39 m. Outside the warm season the boat trip out into the open gulf becomes the limiting factor rather than the wreck.
Open water in the Gulf of Cagliari with no shelter. Sand at 42 m, the wreck standing 12 m proud of it. Boats normally anchor on the vertical of the bridge at about 34 m. Visibility is reported as good when the water is still and poor when the current runs, and the bottom is noticeably colder than the surface — one account describes it as almost lake-like and around 14 °C in August, and attributes both to a probable freshwater source nearby.
On current: Sources disagree and the conservative reading is the safer one. An Italian dive account of the site reports currents from maestrale (NW) or scirocco (SE) as frequent, cold water on the bottom, and visibility that is good only when there is no current; a spot database lists the current here as light. Plan for moving water and a shot line you may have to pull yourself down, and treat the wreck structure as both your route and your reference for the ascent.
Best months: Aug, Sep
The sand under the wreck is at 42 m and the deck and superstructures stand up to just under 30 m, so most of the dive is worked between 30 and 42 m. Boats normally drop the line on the bridge at about 34 m. The detached bow section lies deeper, at around 45 m, and is dived as a separate site.
Sardinian centres treat it as an advanced dive: Seaworld Diving Center Cagliari lists it as advanced plus a deep specialty, and Explorers Team describes it as a dive for advanced recreational divers with penetration reserved for technical divers. If you stay in no-decompression limits you have roughly fifteen minutes of useful bottom time, so nitrox and good gas discipline matter.
On 2 August 1943 she was carrying fuel from Arbatax to Cagliari when she struck a mine from a recently laid barrier that had been badly marked to her captain. The fuel in her tanks amplified the explosion: the bow was torn off and sank immediately, while the rest of the hull drifted without steering and went down separately. One Sardinian account adds that an air attack was in progress at the same moment.
The hull sits upright in sailing trim with the propeller and rudder still in place, plus guns, machine-gun mounts, cargo derricks and the funnel on deck. Explorers Team describes the wreck as wrapped in anthias, damselfish, picarel and sea bream, with large groupers, scorpionfish, moray and conger in the twisted plating and heavy sponge, sea-squirt and fan-worm growth over the hull. Inside, the crew's suitcases, shoes, bottles and pots are still where they were.
Often, yes. An Italian account of the site reports that currents driven by maestrale or scirocco are frequent and that visibility is good only when the current is off; a spot database describes the current here as light. Take the pessimistic version when you plan: expect to work the descent line and to use the wreck itself as your reference for the ascent.
No. The shallowest part of the wreck is around 30 m and the site sits several miles offshore in the open Gulf of Cagliari with no shelter, so there is nothing visible from the surface. It is a boat dive on scuba only.
The one Italian write-up that covers conditions here names September as the best month, when the wind pattern has settled and the water is clearest. Our own diver logged this site in August at 39 m. Expect the bottom to be much colder than the surface — that account records around 14 °C at depth in August and attributes it to a probable freshwater source nearby.
No. The wreck lies in the open Gulf of Cagliari outside any marine protected area, so the permit, zoning and guided-visit rules of the Capo Carbonara AMP at Villasimius do not apply here. You do need a boat and, in practice, a local centre — the site is offshore, deep, and normally shot on the bridge.
| Species | How often | Records |
|---|---|---|
| Aroui setosus | common | 118 |
| Scopelocheirus hopei | common | 97 |
| Varicorbula gibba | common | 72 |
| Nucula nitidosa | common | 64 |
| Kurtiella bidentata | common | 50 |
| Apolochus neapolitanus | occasional | 38 |
| Guernea (Guernea) coalita | occasional | 32 |
| Caprella liparotensis | occasional | 29 |
| Abra alba | occasional | 29 |
| Amphiura chiajei | occasional | 28 |
| Apocorophium acutum | occasional | 25 |
| Gouldia minima | occasional | 25 |
| Pereionotus testudo | occasional | 25 |
| Macarorchestia microphtalma | occasional | 23 |
| Tanais dulongii | occasional | 22 |
| Ericthonius brasiliensis | occasional | 21 |
| Pseudolirius kroyeri | occasional | 19 |
| Musculus subpictus | occasional | 18 |
| Loripes orbiculatus | occasional | 15 |
| Polititapes lucens | occasional | 15 |
| Lucinella divaricata | occasional | 15 |
| Pelagia noctiluca | occasional | 14 |
| Lembulus pella | occasional | 13 |
| Iphinoe serrata | occasional | 12 |
| Parvicardium exiguum | occasional | 12 |
| Moerella donacina | occasional | 11 |
| Hyale pontica | occasional | 11 |
| Melita palmata | occasional | 11 |
| Ophioderma longicaudum | occasional | 10 |
| Caprella acanthifera | occasional | 10 |
| Stenothoe gallensis | occasional | 10 |
| Litigiella glabra | occasional | 10 |
| Abra prismatica | occasional | 10 |
| Medicorophium runcicorne | occasional | 10 |
| Autonoe longipes | occasional | 9 |
| Synchelidium maculatum | occasional | 9 |
| Liljeborgia (Liljeborgia) kinahani | occasional | 9 |
| Lembos websteri | occasional | 8 |
| Leucothoe incisa | occasional | 8 |
| Elasmopus pocillimanus | occasional | 8 |
| Cerapopsis longipes | occasional | 7 |
| Lysianassina longicornis | occasional | 7 |
| Arugella heterodonta | occasional | 7 |
| Ichnopus pelagicus | occasional | 7 |
| Ammonicera rota | occasional | 7 |
| Gammarus locusta | occasional | 7 |
| Pleonexes gammaroides | occasional | 7 |
| Iphimedia minuta | occasional | 6 |
| Photis longicaudata | occasional | 6 |
| Metaphoxus fultoni | occasional | 6 |
| Clibanarius erythropus | occasional | 6 |
| Pachygrapsus marmoratus | occasional | 6 |
| Cotylorhiza tuberculata | occasional | 6 |
| Ondina diaphana | occasional | 6 |
| Papillicardium papillosum | occasional | 6 |
| Apseudopsis mediterraneus | occasional | 6 |
| Olindias malayensis | occasional | 6 |
| Phtisica marina | occasional | 6 |
| Dexamine spiniventris | occasional | 6 |
| Dexamine spinosa | occasional | 6 |
The American armed tug LT 221, mined in October 1944 and lying on her starboard side on sand at 49 m in the Gulf of Cagliari.
SeaLog imports your dives from your dive computer or Apple Watch, tracks every animal you see, and keeps your logbook safe forever.
Download SeaLog