Tegnue is a rocky reef formation located off the coast of Chioggia, Italy, within a protected biological zone. The site features an extensive rocky outcrop rising from a surrounding seabed that averages 21 metres in depth. Divers can explore depths ranging from 17 to 21 metres. Access to this site is strictly by boat, as it is situated approximately 12.8 kilometres from the shore. Conditions are variable, with currents that require intermediate diving skills. Hazards at this location include potential entanglement, sharp coral structures, and strong currents. Water temperatures fluctuate significantly throughout the year, ranging from 9C in February to 20C during the summer and early autumn months.

Tegnue Padova is a rocky reef and wall complex located 12 kilometres off the coast of Chioggia. The site consists of a series of aligned outcrops stretching over 50 metres in a north-east to south-west direction. Divers can explore depths ranging from 15 to 22 metres, with an average depth of 20 metres. The highest rock formations reach up to 18 metres, while the surrounding seabed drops to over 21 metres. Access to this site is by boat only. Conditions are generally mild, though visibility varies significantly from 5 to 30 metres. The site is suitable for beginners and is managed as a protected biological zone.

Tegnue Montagnana is a rocky reef formation situated within a protected biological zone off the coast of Chioggia. This site features a submerged statue of the Madonna of Medugorje, placed by the Gruppo Subacqueo Montagnana. Divers typically explore depths between 17 and 21 metres, with an average depth of 19 metres. Access is strictly by boat, as the site lies approximately 12.8 kilometres from the shore. Conditions include mild currents and visibility ranging from 5 to 15 metres. Water temperatures fluctuate between 9C and 20C, necessitating a 5mm wetsuit. Due to the depth and potential for low visibility, this site is suited for intermediate divers.

Tegnue Mestre is a rocky reef formation located within a protected biological zone off the coast of Chioggia. The site is defined by a distinctive topography resembling a double mountain range that stretches for hundreds of metres in a north-south direction. Divers typically explore depths between 17 and 21 metres, with an average depth of 20 metres. Access is exclusively by boat, as the site lies 14.4 kilometres from the shore. Conditions include mild currents and a constant, strong thermocline. Water temperatures range from 9C to 20C, making a 5mm wetsuit recommended for all dives. Divers should be prepared for low visibility.

Tegnue Cittadella is a rocky outcrop situated within a protected biological zone off the coast of Chioggia. This reef site represents the edge of a larger geological formation that connects to nearby underwater structures. Divers can expect depths ranging from 17 to 20 metres, with an average depth of 20 metres. Access to the site is exclusively by boat, located approximately 12.8 kilometres from the shore. Conditions are characterised by mild currents, though divers should remain vigilant regarding boat traffic in the area. Guided tours are available through local dive shops for those wishing to explore this Adriatic reef system.

Tegnùa del Delfino Bianco is a rocky outcrop located within a biological protection zone off the coast of Chioggia. Spanning approximately 40,000 square metres, the site features a complex rocky topography, with the most significant relief found on the steeper south-eastern slope. This drift dive site is situated 12.8 kilometres from the shore, requiring boat access. Divers can expect depths between 17 and 24 metres, with an average depth of 20 metres. Conditions are characterised by mild currents and visibility that can reach up to 30 metres. Divers should exercise caution regarding sharp coral present throughout the reef structure.

Tegnue Rovigo is a rocky outcrop located within a biological protection area off the coast of Chioggia. The site consists of several rock groups aligned in an east-west direction, extending for just over 50 metres and surrounded by sandy-muddy sediments. Divers can explore this underwater island at depths ranging from 18 to 20 metres. Access to the site is by boat only, as it is situated 13 kilometres from the shore. Conditions are suitable for intermediate divers, with mild currents and visibility typically between 5 and 15 metres. Water temperatures fluctuate significantly throughout the year, ranging from 9C in February to 20C in late summer.

Tegnue Serenissima is an extensive rocky plateau located off the coast of Chioggia, Italy. Situated within a protected biological zone, this site features a distinct reef and wall topography that stretches in a north-northeast to south-southwest direction. Divers can explore depths ranging from 15 to 24 metres, with an average depth of 25 metres. Access to the site is by boat only, located approximately 12.8 kilometres from the shore. Conditions include mild currents and visibility typically between 5 and 15 metres. Water temperatures fluctuate seasonally, ranging from 9C in February to 19C in October. This site is suited for intermediate divers, with typical dive times lasting around 50 minutes.