Supljaca is a boat-access cave and reef site in Croatia, offering a challenging environment for intermediate divers. The topography features a cave system that requires strict adherence to overhead environment protocols. Depths range from 22 to 35 metres, necessitating advanced certification and careful buoyancy control. Visibility typically fluctuates between 10 and 30 metres, while currents remain mild. Due to the depth and overhead nature of the site, divers must carry a primary and backup torch. Water temperatures vary significantly throughout the year, ranging from 13 to 26 degrees Celsius, making appropriate thermal protection essential for dives conducted outside of the summer months.

The Oseava Wreck is a technical dive site located in Croatia, resting at depths between 53 and 60 metres with an average depth of 56 metres. Access is exclusively by boat, requiring coordination with a local technical dive operator. Divers encounter mild currents and visibility ranging from 10 to 30 metres. Due to the significant depth, the site presents hazards including nitrogen narcosis, entanglement risks within the structure, and the necessity for mandatory decompression stops. Water temperatures fluctuate seasonally between 13 and 26 degrees Celsius, necessitating careful thermal protection planning. Night diving is permitted at this location.

More Sub is a shore-entry site in Croatia featuring a diverse topography of reef, wall, and cave formations. Located 50 metres from the shore, the site offers depths ranging from 7 to 40 metres, with shallower sections suitable for beginners. Visibility typically spans 10 to 30 metres, and currents remain mild. The water temperature fluctuates between 13C and 26C throughout the year. Divers should be aware of boat traffic near the surface and use a marker buoy during ascent. Sharp coral and rocks are present on the seabed, and sea urchins are common in shallow areas. Night diving is available at this location.

Kamena is a reef site located off the South Dalmatia coast, offering a versatile profile for divers of all levels. The reef structure extends from a shallow depth of 1 metre down to 30 metres, allowing for gradual progression. With visibility ranging between 10 and 30 metres and an absence of significant currents, the site provides a stable environment for practice. Water temperatures fluctuate seasonally, reaching 26°C in August and dropping to 14°C in February and March. Divers should arrange equipment hire and air fills with a local dive centre in advance, as facilities at the site are limited.

Garma is a marine dive site in Croatia featuring a combination of reef and cave topography. The site reaches depths between 18 and 33 metres, requiring divers to monitor their limits carefully. Access is by boat, and conditions include mild currents with visibility ranging from 5 to 10 metres. Water temperatures fluctuate significantly throughout the year, from 14 degrees Celsius in winter to 26 degrees Celsius in summer. Species recorded around this area include wrasses, tompot blenny, crabs, abalone, castagnole, two-banded seabream, sea stars, comber, painted comber, bream, snails, salema porgy, and mullet.

Klokun is a reef dive located in Croatia, offering a profile that ranges from 17 to 38 metres. This site is suited for intermediate divers comfortable with managing depth and buoyancy. Conditions are generally manageable, with mild currents and visibility fluctuating between 10 and 30 metres depending on the season. Access to the reef is exclusively by boat. Water temperatures vary significantly throughout the year, ranging from 14C in winter to 26C in summer. Divers should arrange air fills and equipment in the nearest town before departure, as there are no confirmed facilities at the site.

Purple Bay on Vis Island features a sharp drop-off and reef structure descending from 15 to 35 metres. With an average depth of 25 metres, the site requires intermediate buoyancy control to navigate the wall. Visibility is consistently between 25 and 35 metres, providing clear views of the reef face. Divers must access the site by boat, as it is located 5000 metres from shore. Moderate currents are standard, though strong surges can occur, necessitating careful monitoring before descent. Species recorded around this area include wrasses, scorpionfish, tompot blenny, sea stars, crabs, castagnole, abalone, bream, painted comber, snails, salema porgy, and mullet.

Punta Rata on Vis Island offers three distinct underwater environments: a reef, a wall, and a cave. The site ranges from 5 to 40 metres in depth, with an average of 20 metres. Beginners are best suited to the shallower reef sections. Visibility typically spans 10 to 30 metres, and the mild current allows for relaxed exploration. Entry is possible from both shore and boat. Water temperatures fluctuate between 13C and 26C, requiring appropriate thermal protection during cooler months. Divers should exercise caution during entry and exit to avoid skin abrasions from sharp rocks and coral on the seabed.