Secca di Punta Nera di Osala is a reef and canyon site located 2000 metres offshore in the Orosei Gulf. Divers explore depths between 20 and 24 metres, with an average depth of 22 metres. The site features a combination of reef structures and canyons, offering varied topography. Visibility is variable, ranging from 10 to 30 metres, while currents remain mild throughout the area. Access to this site requires a boat. Due to water temperatures fluctuating between 14 and 24 degrees Celsius, a 5mm wetsuit is recommended for dives outside of the summer season. This site is suitable for beginners with an open water certification.

Spiaggia di Osalla is a long beach in the Orosei Gulf, where the southern rocky headland offers the most suitable conditions for snorkelling. The site features a mix of rocky terrain and sandy patches, with depths typically ranging from 2 to 8 metres and an average of 4 metres. It is accessible directly from the shore and is well-suited for beginners. Visibility varies between 5 and 20 metres, and currents are generally moderate. Species recorded around this area include Mediterranean Moray, Turkish Wrasse, Scorpionfish, and various crabs. Facilities at the beach include parking, toilets, showers, changing rooms, and a cafe.

Acqua dolce is a reef site located in the Orosei Gulf, Italy, suitable for beginners and those looking to refresh their diving skills. The site reaches a maximum depth of 18 metres and features mild currents. Divers can access the reef via both shore and boat entries. Water temperatures fluctuate throughout the year, ranging from 14C in the winter months to 25C in late summer. Due to the nature of the area, divers should remain aware of boat traffic and sharp coral structures present at the site.

Protec Sardinia is a technical diving site located in the Orosei Gulf, specialising in cave and cavern exploration. The site features depths ranging from 13 to 48 metres, with an average depth of 14 metres. Access is strictly by boat. Conditions vary, with visibility reaching up to 25 metres and moderate currents present. Due to the overhead environment, deep profiles, and potential for low visibility, this site is suitable only for advanced divers with appropriate technical training. Facilities available at the site include air fills, guided tours, gear storage, and boat charters.

Sardegna & Tuscany Wreck in the Orosei Gulf offers a diverse underwater experience, combining cave, wreck, and reef topography. Divers can explore depths ranging from 10 to 45 metres, with an average depth of 25 metres. Access is strictly by boat, as the site lies 2000 metres offshore. Conditions include moderate currents and visibility between 15 and 30 metres. Water temperatures fluctuate between 14C and 19C, with thermoclines often occurring near 12 metres. Due to the overhead environments and depth, this site is suitable for intermediate divers with Advanced Open Water certification. A torch is essential for navigating the wreck and cave sections safely.

Lungomare Beach in the Orosei Gulf offers a accessible shore dive featuring a long rocky reef and cave structures. The site is suitable for beginners and trainee cavern divers, with depths ranging from 1 to 8 metres and an average depth of 4 metres. Divers can expect mild currents and visibility between 5 and 25 metres. The entry is from the shore, though caution is advised due to slippery conditions and local boat traffic. Facilities include a rinse station, showers, and equipment rental. The site is also suitable for night diving, with typical dive times around 50 minutes.

S'Abba Meica is a pebble beach located in the Orosei Gulf. This reef site features underwater sulfur springs that provide a distinct sensory experience for snorkellers. The water depth ranges from 2 metres downwards, with visibility typically varying between 10 and 25 metres. Conditions are generally suitable for intermediate snorkellers, with mild currents present. Access to the water is via the shore. Water temperatures fluctuate throughout the year, ranging from 14C in the cooler months to 27C during the peak of summer.

The KT-12 Stern is a historical wreck site located in the Orosei Gulf, Italy. This armed cargo ship was sunk in 1943, resulting in the hull separating into two distinct sections. Divers can explore the stern, which remains in good condition. Key features include a clearly visible stern cannon, as well as the propeller and rudder. The site sits at depths between 24 and 34 metres, with an average depth of 30 metres. Access is by boat only, located over 11 kilometres from the shore. Due to the depth and overhead environment, this site is suitable for advanced divers only. Visibility typically ranges from 15 to 30 metres.