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 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.

Wreck Romagna is a cargo ship resting on the seabed at a maximum depth of 43 metres. This advanced dive requires careful gas management and buoyancy control. The wreck structure is extensive, allowing for multiple dives to explore the hull and superstructure. Divers should be aware of variable currents and potential hazards including silt and restricted exits during penetration. Surface conditions require vigilance due to boat traffic in the area. Access is by boat only. The site is best suited for experienced divers capable of managing deep-water environments and decompression requirements.

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 Remorker is a wreck dive located off the coast of Pula, Croatia, resting at depths between 35 and 37 metres. This site is suitable for advanced divers only, requiring boat access and careful management of bottom time. Visibility typically ranges from 10 to 20 metres, allowing for observation of the hull structure. Divers should be aware of the potential for entanglement within the wreck and maintain strict buoyancy control. Due to the depth and water temperatures, which fluctuate between 11 and 18 degrees Celsius, appropriate thermal protection is recommended for this 40-minute dive. The site experiences mild currents.

Velika Kolombarica Cave, located at the southernmost tip of Istria near Pula, is a distinctive sea cave featuring a heart-shaped opening. The site includes a 15-metre underwater tunnel and a reef environment. Snorkellers can explore depths ranging from 3 to 18 metres, with an average depth of 5 metres. Access is via the shore. Due to strong currents, this site is suitable for advanced snorkellers. Water temperatures fluctuate significantly throughout the year, ranging from 12C in late winter to 26C in August. The cave interior is illuminated by sunlight filtering through the roof, providing visibility within the cavern structure.

The Vis wreck is a deep-water site located 250 metres from the shore near Pula. The structure lies at depths between 20 and 40 metres, with an average depth of 32 metres. Access is strictly by boat. Divers encounter mild currents and visibility ranging from 10 to 40 metres. Due to the significant depth and overhead environment, this site is reserved for advanced divers with wreck penetration experience. Water temperatures fluctuate between 11C and 18C, with cold upwellings possible at depth. Divers should monitor decompression limits closely and use appropriate thermal protection, such as a drysuit or a thick 7mm wetsuit, particularly during colder months.