Plemmirio, Marine protected area near Syracuse, Italy.

Plemmirio is a marine protected area covering 2,429 hectares of sea along 14.35 km of the eastern Maddalena Peninsula, ending at Cape Murro di Porco on the Gulf of Noto. Its shore is a low, flat shelf of pale tan and grey stratified rock in thin horizontal bands, with two blocky outcrops standing on it and shallow pools between them; a darker eroded ledge meets the water. Beyond lies open blue water and a distant rocky point.

The protection area was established in 2004 by Italian authorities to preserve marine diversity and ecological balance. It was divided into three zones to allow different levels of use and conservation.

The name Plemmirio derives from the Sicilian "a piḍḍirina", meaning "the pilgrim", a term also behind the italianised "Pillirina" used for Punta della Mola. The cape at the reserve's tip is Murro di Porco, on the Gulf of Noto. The 2015 documentary "Plemmirio l'ultima costa", written and directed by Antonio Caia, covers the area's natural and historical features.

The area has several spots where you can enter the water from shore, with wooden platforms installed during warmer months for easier access. Diving requires authorization from the reserve management.

In 2017 a British Vickers Wellington bomber was found on the seabed at 36 metres depth; it was shot down at 2 a.m. on 9 July 1943 during Operation Husky. The reserve's shallows also hold trottoir a vermeti, biostructures built by vermetid snails that resemble small coral reefs.