Cala Sorrentino in the Tremiti Islands offers a combination of open reef and cave exploration. The site reaches depths of 18 to 20 metres with visibility ranging from 10 to 30 metres. Conditions are generally manageable due to mild currents, though the cave section presents an overhead environment requiring caution. Access to this site is by boat only, located approximately 500 metres from the shore. Divers should note that water temperatures fluctuate between 13C and 22C throughout the year. A dive torch is strongly recommended for navigating the cave and reef sections. This site is suitable for beginners, provided they remain within their training limits and follow safety protocols for overhead environments.

Cala dei Turchi is a technical dive site in the Tremiti Islands featuring a complex topography of walls, canyons, and caves. Divers can expect depths ranging from 20 to 32 metres, with an average depth of 30 metres. The site presents an overhead environment that requires specific training to navigate safely. Visibility varies between 10 and 30 metres, and a moderate current is typically present. Entry is possible from both shore and boat, though shore entries require careful scouting due to rocky terrain and potential swell. Given the depth and overhead sections, divers must maintain strict buoyancy control and gas management throughout the dive.

Scoglio della Cernia is a reef dive located in the Tremiti Islands, Italy. The site sits at depths between 20 and 25 metres and requires boat access. Divers encounter moderate currents, necessitating good buoyancy control. Visibility at the site ranges from 10 to 30 metres. Water temperatures fluctuate between 13 and 21 degrees Celsius throughout the year, requiring appropriate thermal protection. A notable hazard at this site is the presence of stonefish on the reef. Divers should maintain neutral buoyancy to avoid contact with the seabed and refrain from touching the rocks to prevent accidental encounters with these fish.

Punta delle Pietre Nere is a reef site located in the Tremiti Islands, Italy, accessible only by boat. The reef extends from 13 to 30 metres in depth, with an average depth of 20 metres. Divers should expect moderate currents and visibility ranging from 10 to 30 metres. Water temperatures fluctuate between 13C and 19C throughout the year, necessitating appropriate thermal protection. Hazards include boat traffic near the surface, potential surge, and seasonal jellyfish. Due to the depth and current, this site is suited for intermediate divers. Typical dives last approximately 40 minutes, and local boat charters are required for access.

Il Grottone is a reef site located in the Tremiti Islands, Italy, accessible exclusively by boat. The site features shallow and calm water, providing a forgiving environment suitable for divers without prior certification. Water temperatures fluctuate significantly throughout the year, ranging from 13C in March to 27C in August, necessitating appropriate thermal protection during cooler months. Visibility at this location is variable, and divers are advised to consult with local boat operators regarding current conditions before planning a trip. As there are no confirmed facilities at the site, divers should ensure all necessary equipment is brought on board.

Gli Archi in the Tremiti Islands features a distinctive topography defined by two natural arches crossing the shoal. The site begins at a shallow depth of 6 metres, marking the start of a vertical wall that descends to 57 metres. Due to the significant depth and strong currents, this site is reserved for advanced divers with technical certification. Access is exclusively by boat, with typical dives lasting 60 minutes. Visibility ranges from 10 to 25 metres, and water temperatures fluctuate between 13C and 17C throughout the year. Divers should be aware of hazards including the depth, potential for entanglement, and strong currents.

Scoglio Segato is a reef dive located in the Tremiti Islands, Italy. The site features a reef structure that drops from 15 to 24 metres, with an average depth of 24 metres. Access is strictly by boat. Visibility at the site ranges from 10 to 30 metres, and there is typically no current, allowing for a slow and methodical pace. Water temperatures fluctuate between 13C and 21C throughout the year, necessitating appropriate thermal protection. Species recorded around this area include Mediterranean moray, great barracuda, and various nudibranchs such as the Cratena slug and splendid Elysia. This site is suitable for intermediate divers.

Punta Secca is a technical dive site in the Tremiti Islands featuring a complex topography of walls, reefs, and caves. The site drops from 6 metres to a maximum depth of 55 metres, with an average depth of 35 metres. Due to the overhead environment within the cave system and the significant depth, this site is reserved for advanced divers. Visibility ranges from 10 to 30 metres, though divers must manage moderate currents and potential entanglement risks. Water temperatures are cool, ranging between 13 and 17 degrees Celsius, requiring appropriate thermal protection. Boat access is required for all entries to reach the deeper reef zones safely.