The dive
These coordinates land on Isola Rossa in the comune di Teulada, at the south-western corner of Sardinia. It is worth saying plainly, because Sardinia has several Isola Rossa: this is not the resort of the same name at Trinita d'Agultu in the north, nor anything near Tavolara. It is a small uninhabited islet of reddish granite, 43 m at its highest point, with a freshwater spring and the perimeter walls of an early-1900s tuna-processing building still standing.
The islet is a seabird colony, with Audouin's gull and Scopoli's shearwater nesting on it, and the surrounding seabed is colonised by Posidonia oceanica meadows. It lies inside the Natura 2000 site ITB040024 'Isola Rossa e Capo Teulada', 3,715 ha, most of whose land is military property and closed.
That military presence is the fact that governs the dive. The Capo Teulada firing range occupies the water immediately west: inside the polygon set by Ordinanza 132/2021 of the Cagliari Capitaneria di Porto, anchoring, scuba diving and fishing are permanently prohibited because of unexploded ordnance on the bottom. The ordinance's eastern boundary runs up to Punta Pirastu, just west of the island, so the island itself reads as outside the interdicted polygon; but it sits on the line, and total closures are imposed during exercises. Check the current Capitaneria ordinance before planning anything here.
We deliberately publish no depth, current, visibility or certification figure for this site. No diving centre in the area publishes a site sheet for Isola Rossa. Operators from Chia and Sant'Antioco do run guided boat dives over the Chia-Pula-Cala Piombo-Capo Teulada stretch, and one has posted underwater footage tagged at Isola Rossa, so the site is dived commercially; but the numbers circulating on dive directories are unsourced, and inventing them here would be worse than leaving them blank. OBIS records for the surrounding water are standard western Mediterranean rocky-reef and seagrass fauna: ornate wrasse, salema, spiny lobster, purple sea urchin, dusky grouper, brown meagre, moray, and notably the fan mussel Pinna nobilis, a protected species that has been devastated across the Mediterranean since 2016.
- Uninhabited red-granite islet with a ruined early-1900s tonnara building
- Posidonia oceanica meadows on the surrounding seabed
- Audouin's gull and Scopoli's shearwater colony above water
- On the eastern edge of the Capo Teulada military range
Please note before you go
- Unexploded ordnance on the bottom inside the adjacent Capo Teulada range, where diving is permanently prohibited
- Temporary total closure of the surrounding water during military exercises
- Exposed offshore islet about a nautical mile out; boat-dependent with no shelter