Vidonjica 4 is a marine dive site in the Kvarner Gulf featuring a combination of reef and cave topography. The site ranges from 10 to 30 metres in depth, with an average of 20 metres, making it suitable for intermediate divers. Access is by boat only. Divers can expect mild currents and visibility ranging from 10 to 25 metres. Water temperatures fluctuate significantly throughout the year, from 12 to 26 degrees Celsius, requiring appropriate thermal protection. The habitat supports a variety of Mediterranean reef fish and invertebrates typical of the region. Local dive operators should be consulted for current mooring and access information as there are no fixed facilities at this location.

Crljena Greda is a reef and wall dive located in the Kvarner Gulf, featuring a drop-off that extends from 15 to 40 metres. The site is accessible only by boat, requiring coordination with a skipper for entry and exit. Visibility at the site varies between 10 and 30 metres, providing clear views of the wall structure. Due to the depth range and potential for cold water temperatures, which can drop to 12 degrees Celsius in winter, this site is suited for intermediate divers with proficient buoyancy control. Divers should prepare for seasonal temperature fluctuations and verify current conditions locally before departure.

Bucht Mrzlanovica features a wreck situated in deep water alongside a wall formation, providing vertical relief for divers. The site ranges from 30 to 50 metres in depth, making it suitable for advanced divers. Visibility typically fluctuates between 5 and 10 metres, necessitating careful buoyancy control and the use of torches. Currents are generally mild, though the depth and structure present risks of entanglement and sharp surfaces. Access is exclusively by boat, and there are no facilities at the site. Divers should plan bottom times conservatively and monitor gas reserves closely given the technical nature of the depths involved.

Light House is a shore-entry dive site located in the Cres and Lošinj area of Croatia. The site features a combination of reef and wall topography. Diving conditions are variable, with water temperatures ranging from 12C in March to 26C in August. The site is suitable for beginners, with an average depth of 9 metres. As a marine environment, the site offers a typical Mediterranean underwater landscape, though specific marine life observations are not recorded for this location. Divers should plan their visits according to the seasonal temperature fluctuations, which remain mild throughout the year.

Red Cave in the Cres and Lošinj area of Croatia is a cavern dive site accessible exclusively by boat. The site features a consistent depth of approximately 13 metres. Divers should be prepared for variable visibility ranging from 5 to 25 metres and mild currents. As an overhead environment, this site requires appropriate training for cave or cavern entry. Water temperatures fluctuate significantly throughout the year, ranging from 12C in March to 26C in August. The habitat supports a variety of Mediterranean reef fish and invertebrates typical of the Kvarner Gulf region. Hazards include low visibility and sharp coral formations within the cave structure.

Bluebay Local in the Kvarner Gulf provides a varied underwater landscape suitable for beginner divers. The site features a combination of reef, wall, and cave formations accessible via a shore entry. Divers can explore depths ranging from 10 to 30 metres, with an average depth of 15 metres. Conditions are generally manageable, with mild currents and visibility between 10 and 30 metres. The site supports a range of Mediterranean reef fish and invertebrates typical of the region. Water temperatures fluctuate significantly throughout the year, ranging from 12C in March to 26C in August, requiring appropriate thermal protection for the season.

Triget is a marine dive site located in the Kvarner Gulf, Croatia, featuring a diverse topography of reef, wall, and cave formations. This site is accessible only by boat and is suited for intermediate divers. The depth ranges from 20 to 45 metres, with an average depth of 25 metres. Divers can expect mild currents and visibility between 5 and 10 metres. The site is suitable for night diving, with typical dives lasting 45 minutes. The habitat supports a variety of regional reef fish and invertebrates. Water temperatures fluctuate seasonally, ranging from 12C in March to 26C in August.

Dolini Roncsok is a deep reef and wall site located in the Kvarner Gulf near Rab. The terrain descends from 25 to 45 metres, with an average depth of 35 metres. Divers encounter mild currents and visibility ranging from 10 to 30 metres. Due to the significant depth, this site is suited for intermediate divers with strong buoyancy control skills. A thermocline is present between 5 and 12 metres, and water temperatures vary from 12C to 26C throughout the year. The site supports a variety of regional reef fish and invertebrates. Boat access is required, and divers should monitor for nitrogen narcosis and manage decompression stops carefully.