The Hans Schmidt is a steamship wreck located off the coast of Istria, Croatia. Resting at depths between 28 and 43 metres, with an average depth of 40 metres, this site is strictly for advanced divers. Access is by boat only, as the wreck lies 22 kilometres from the shore. Divers encounter mild currents and visibility ranging from 10 to 15 metres. The structure provides an overhead environment with risks of entanglement, requiring careful navigation. Water temperatures at depth remain cool, typically around 12C. The wreck serves as a habitat for various reef fish and invertebrates typical of the region.

The Giuseppe Dezza is a shipwreck located off the coast of Istria, Croatia, resting at depths between 28 and 37 metres. This site is strictly for advanced divers with deep-diving certification. Access is exclusively by boat, as the wreck lies approximately 18.5 kilometres from the shore. Divers should be prepared for moderate currents and variable visibility, which typically ranges from 10 to 15 metres. The wreck structure requires careful buoyancy control to avoid entanglement. Given the maximum depth of 37 metres, divers must plan bottom times conservatively, maintain sufficient gas reserves for safety stops, and monitor depth gauges closely throughout the dive.

The John Gilmore is a deep wreck resting upright on a sandy seabed off the Istrian coast. With depths ranging from 30 to 44 metres, this site requires advanced diving skills and precise buoyancy control. Visibility typically spans 15 to 25 metres, allowing divers to view the hull profile clearly. The structure is colonised by sponges and provides habitat for scorpionfish, conger eels, nudibranchs, and California spiny lobster, while schools of bogues frequent the superstructure. Access is by boat only, and divers should be aware of the risk of entanglement when exploring the wreckage. Mild currents generally prevail, though the depth necessitates careful gas management throughout the dive.

The Varese is an upright wreck resting on a sandy bottom at depths between 33 and 42 metres. This advanced dive requires careful planning due to the significant depth and moderate currents. The structure is heavily colonised by gorgonians and sponges, with various fish species inhabiting the hull and superstructure. Divers must manage potential entanglement risks within the wreck and remain vigilant for boat traffic during ascent. Visibility typically ranges from 10 to 15 metres. Given the depth and conditions, this site is strictly for experienced divers equipped with a reel and surface marker buoy.

The Romagna is a wreck dive located off the coast of Rovinj and Poreč, Croatia. Resting at depths between 28 and 40 metres, this site is intended for advanced divers only. Access is by boat, and the site is not suitable for snorkelling. Visibility is limited to 5 to 10 metres, and water temperatures range from 11 to 18 degrees Celsius, requiring appropriate thermal protection. Divers should be prepared for mild currents and potential entanglement hazards within the wreck structure. A torch is recommended for navigating the hull, where reef fish and invertebrates are found. Divers must monitor depth gauges closely to manage the risks of nitrogen narcosis during the 35-minute average dive.

The Varese is a wreck site located 25 kilometres off the coast of Pula, Croatia. Resting at depths between 32 and 40 metres, this site is strictly for advanced divers. The vessel serves as an artificial reef, with sponges and gorgonians colonising the hull. Divers may encounter scorpionfish, conger eels, and snowflake morays within the wreckage, while saddled seabream and yellowtail damselfish inhabit the surrounding water column. California spiny lobster are also found in the shadows. Conditions include mild currents and variable visibility that can drop to zero. Due to the depth and potential for low visibility, divers must maintain excellent buoyancy control and carry a torch and surface marker buoy.

The Baron Gautsch is an Austro-Hungarian passenger ferry that sank in 1914 after striking a mine. Resting on a sandy seabed at depths between 28 and 40 metres, the wreck remains largely intact. Divers encounter a moderate current that can strengthen unexpectedly, requiring boat-based entry and exit. Visibility typically ranges from 5 to 10 metres. Due to the depth and the overhead environment within the superstructure, this site is strictly for advanced divers. Proper buoyancy control is essential to navigate the wreck safely while managing decompression obligations and the risks of nitrogen narcosis. A surface marker buoy is required for the ascent due to local boat traffic.

The Numidia is a deep wreck dive located off the coast of Istria, Croatia. The vessel rests at depths between 33 and 40 metres, with an average depth of 36 metres. Access is strictly by boat, and the site is suitable only for advanced divers due to the significant depth, overhead environments, and moderate currents. Visibility is limited to approximately 5 metres, necessitating the use of a torch for navigation. Water temperatures fluctuate between 11 and 18 degrees Celsius throughout the year, making a drysuit or thick wetsuit advisable. Divers should maintain awareness of currents during descent and ascent and ensure they possess recent deep diving experience.