Torre del Campese is located at the northern end of Campese Bay near Isola del Giglio. This site features a combination of natural reef and artificial structures formed by the rocky foundations of the historic Medicean Tower. Snorkellers can access the water directly from the shore. Depths range from 1 to 40 metres, though the average depth is 1 metre, making it suitable for beginners. Conditions vary, with visibility typically between 5 and 25 metres and mild currents. Hazards include sea urchins, sharp coral, and surge. Facilities available at the site include parking, showers, and gear storage.

Secca della Croce is a seamount located 300 metres off Isola del Giglio, offering a varied topography that transitions from a shallow reef at 5 metres to steep walls and drop-offs reaching 45 metres. With visibility consistently around 30 metres, the site is suited for intermediate divers capable of managing strong currents. Access is by boat only, and a negative entry is required to avoid surface drift. Divers must monitor their depth closely and maintain situational awareness, as currents can shift in intensity and direction. A surface marker buoy is recommended for the ascent due to the potential for drift.

Spiaggia dei Pozzarelli in Porto Ercole is a reef site offering depths between 2 and 15 metres, with an average of 7 metres. Accessible by both shore and boat, the site features a rocky seabed suitable for intermediate divers and snorkellers. Visibility typically ranges from 10 to 25 metres, though conditions vary. Marine life recorded at the site includes wrasses, bream, crabs, and hermit crabs. Divers may also encounter Mediterranean moray, white-spotted octopus, common octopus, European common cuttlefish, Turkish wrasse, cleaner shrimp, fried egg jellyfish, scorpionfish, conger eel, and Cratena slug. Be aware of jellyfish as a potential hazard when diving or snorkelling in this area.

Punta Di Radice is a reef dive site located near Porto Ercole in Italy. The site is accessed exclusively by boat and is suited for intermediate divers. The topography consists of a reef structure with an average depth of 20 metres. Visibility at the site varies between 10 and 30 metres depending on conditions. Water temperatures fluctuate throughout the year, ranging from 14C in March to 23C in September. As a marine reef environment, the site offers a typical Mediterranean underwater landscape for divers to explore.

Punta del Faraglione is defined by a massive rock stack located at the southern tip of Campese Bay. This site features dramatic underwater topography, including a drop-off and rocky seabed that descends from 5 to 35 metres. Suitable for intermediate divers and snorkellers, the site offers both shore and boat access. Conditions vary, with visibility typically ranging between 10 and 25 metres and moderate currents present. Water temperatures fluctuate between 14C and 19C throughout the year. Divers should be aware of potential surf conditions at this location. Facilities including a cafe, dive shop, and equipment rental are available nearby.

Secca dei Subielli is a boat-access reef and wall site located 1000 metres from the shore near Porto Ercole. The topography features a combination of reef and wall sections, offering intermediate divers varied terrain between 10 and 30 metres depth, with an average depth of 20 metres. Conditions are generally manageable with mild currents and visibility ranging from 10 to 25 metres. Water temperatures fluctuate between 14C and 20C, necessitating a 5mm wetsuit for most of the year. Species recorded around this area include wrasses, Mediterranean moray, European common cuttlefish, and various octopus species. Typical dive times are approximately 45 minutes.

Cala dell'Allume is a heart-shaped cove located on the west coast of Isola del Giglio. The site features a rugged seabed defined by mineral-rich rocks from a former pyrite mine, creating numerous crevices and caves. Water temperatures range from 14C to 26C, with underwater springs occasionally creating cold spots. Access is available from both shore and boat. Due to the presence of sharp coral and potential for entanglement, this site is recommended for intermediate snorkellers. Species recorded around this area include wrasses, Mediterranean moray, European common cuttlefish, and various octopus species, though these are not confirmed sightings at this specific location.

Cala del Corvo is a cove on the west coast of Porto Ercole featuring a sea cave with a small internal beach. The site consists of underwater walls covered in sponges and corals, reaching depths of up to 40 metres with an average of 20 metres. Access is by boat only, and the site is suitable for advanced divers due to strong currents. Visibility ranges from 10 to 30 metres. Species recorded around this area include wrasses, Mediterranean moray, common octopus, and various nudibranchs. The site is also rated highly for snorkelling. Water temperatures fluctuate between 14C and 18C throughout the year.