Secca di Mezzo Canale is a technical dive site located 4800 metres off Giannutri. The topography consists of a reef, wall, and drop-off that descends from 24 metres to a maximum depth of 90 metres, with an average depth of 45 metres. Divers encounter strong currents throughout the water column, necessitating careful management of decompression schedules and gas planning. Visibility ranges from 10 to 30 metres, and water temperatures remain between 14 and 17 degrees Celsius. Due to the significant depth and current, this site is suitable only for expert divers. Boat access is required, and the use of a surface marker buoy is essential.

Cala Mar Morto on Giannutri is a shallow reef site defined by its calm waters, which are protected by a natural rock barrier and the nearby Isola Rossa. This site features shallow natural pools with depths ranging from 1 to 8 metres, averaging 4 metres. It is accessible via a shore entry and is suitable for beginners. Conditions are generally mild, with visibility typically between 5 and 15 metres. Water temperatures fluctuate seasonally, ranging from 14C in March to 25C in August and September. Parking facilities are available nearby. Divers should be aware of sharp coral present at the site.

Cala dell'Olio is a rocky inlet situated beneath the Torre della Maddalena on the island of Giannutri. The site features a seabed composed of large boulders, creating a complex topography for exploration. Divers and snorkellers can expect depths ranging from 1 to 10 metres, with an average depth of 5 metres. Access to this site requires a boat. Conditions vary, with visibility ranging from 5 to 25 metres and mild currents. The water temperature fluctuates between 14C and 25C throughout the year. Due to the rocky environment, divers should be aware of sea urchins and sharp coral present in the area.

Argentarola Caves is a complex site located 500 metres off the coast of Giannutri, Italy. The topography includes caves, reefs, walls, and drop-offs that range in depth from 4 to 50 metres, with an average depth of 25 metres. Access is by boat only. Conditions are generally mild, though visibility fluctuates between 10 and 30 metres. Due to the overhead environment and significant depths, this site is suited for advanced divers. Water temperatures remain cool, ranging from 14C to 18C throughout the year. Facilities available in the area include equipment rental, air fills, and guided tours.

Punta Avoltore is a reef and wall dive located off the coast of Giannutri, Italy. The site features a wall that descends from 25 to 35 metres, with an average depth of 30 metres. Divers experience mild currents and visibility ranging from 10 to 30 metres. Due to the presence of sharp coral and rock formations, precise buoyancy control is required to avoid injury. Access is strictly by boat, and the site is suitable for intermediate divers. Water temperatures fluctuate between 14C and 19C, requiring appropriate thermal protection. Night diving is available, offering a different perspective of the reef environment.

Cala dei Santi is a boat-accessible site located 500 metres off the coast of Giannutri. The topography consists of rocky reefs, Posidonia meadows, and small caves, offering a varied underwater environment. Divers can explore depths ranging from 5 to 23 metres, with an average depth of 15 metres. Conditions are generally mild, with visibility between 10 and 25 metres. The site is suitable for beginners, though the presence of small caves introduces an overhead environment. Dives typically last around 40 minutes. Facilities available nearby include air fills, equipment rental, showers, toilets, and gear storage. Night diving is permitted at this location.

Punta Secca is a wall and reef dive site located off the coast of Giannutri, Italy. The site features a significant depth range of 14 to 55 metres, with an average depth of 30 metres. Due to the depth and moderate currents, this site is suited for intermediate divers. Access is strictly by boat. Visibility typically ranges between 10 and 30 metres. Species recorded around this area include Mediterranean moray, common octopus, John Dory, scorpionfish, gorgon's head, various wrasses, and several species of sea slugs. Divers should be aware of the deep water and potential for strong currents during their descent.

Punta Scaletta, located on the northeast coast of Giannutri, is a site defined by a shallow plateau and a wall that drops to 55 metres. The site is notable for the remains of an ancient Roman shipwreck, with archaeological fragments visible from the surface due to the 30-metre visibility. Access is by boat only, and the site is suitable for beginners, though divers should be aware of the depth, potential for entanglement, and overhead environments. With an average depth of 25 metres and moderate currents, it offers a distinct experience for both divers and snorkellers.