Katedrala is a complex dive site in the Kvarner Gulf featuring a wall and reef structure that descends from 6 metres to 45 metres. The site is defined by a substantial cave system, requiring advanced buoyancy skills and a primary torch for navigation. Divers encounter a variety of marine life, including scorpionfish, octopus, conger eels, and forkbeard. California spiny lobster inhabit the darker recesses of the cave, while gorgonians and sponges cover the deeper wall sections. Access is by boat only, located 50 metres from the shore. With visibility ranging from 15 to 30 metres, this site offers a challenging environment for experienced divers.

Skarda is a shallow site in the Kvarner Gulf featuring a combination of a wreck and a reef. Located 1300 metres from shore, the site is accessible by boat only. Divers experience depths between 1 and 2 metres with visibility ranging from 10 to 30 metres. The area is subject to moderate currents that can strengthen, requiring careful planning. Hazards include entanglement risks from the wreck structure and sharp coral or rocks, necessitating precise buoyancy control. As facilities are not guaranteed on-site, divers should arrive fully equipped. This site is suited for intermediate divers capable of managing changing current conditions.

Vodenjak is a reef site located in the Kvarner Gulf, accessible only by boat. The reef structure slopes from a shallow depth of 3 metres down to 30 metres, with an average depth of 15 metres. This site is suitable for beginner divers due to the mild currents. Visibility typically ranges between 5 and 10 metres. Divers should be aware of boat traffic, particularly during ascent, and are advised to deploy a surface marker buoy. Protective footwear and gloves are recommended to avoid injuries from sharp coral and rocks during entry and exit. Water temperatures fluctuate between 13 and 26 degrees Celsius throughout the year.

Uvala Krivica is a shore-entry reef dive located in the Cres and Lošinj area of the Kvarner Gulf. The site features a reef structure that reaches depths of 25 to 30 metres. Divers can expect mild currents, though surge and swell are common hazards that require careful monitoring during entry and in shallower sections. Visibility typically ranges between 10 and 25 metres. Water temperatures fluctuate between 13 and 19 degrees Celsius throughout the year, necessitating appropriate thermal protection. This site is suited for intermediate divers, and it is recommended to check local conditions and facility availability before planning a dive.

Čikat Bay in the Cres and Lošinj archipelago offers a diverse underwater landscape featuring artificial reefs, natural reefs, walls, caves, and canyons. This site is suitable for beginners, with depths ranging from 5 to 40 metres and an average depth of 10 metres. Divers can expect mild currents and visibility between 5 and 30 metres. Access is via a shore entry, and the site is supported by local facilities including air fills, guided tours, parking, and rinse stations. Water temperatures fluctuate from 12C in spring to 24C in late summer. Typical dives last approximately 40 minutes. Hazards include deep sections, entanglement risks, low visibility, sea urchins, and surf.

Čikat Underwater Museum is an artificial reef located in the Kvarner Gulf, Croatia. The site features 11 replicas of historical artefacts, including cannons and the Apoxyomenos statue, arranged on the seabed. Situated at depths between 5 and 15 metres, with an average of 10 metres, the museum is accessible to both divers and snorkellers. Entry is from the shore, and conditions typically include mild currents and visibility ranging from 10 to 20 metres. Facilities at the location include parking, toilets, showers, changing rooms, and a dive shop offering equipment rental, air fills, and guided tours. The site is suitable for beginners, with a typical dive duration of 40 minutes.

Lagnici in the Kvarner Gulf features a combination of natural reef and artificial structures, offering two distinct environments for divers. The site ranges from 25 to 40 metres in depth, with an average of 25 metres. Conditions are generally manageable with mild currents and visibility between 10 and 30 metres. Water temperatures fluctuate between 13 and 18 degrees Celsius, necessitating appropriate thermal protection. Access is exclusively by boat. Divers should remain cautious of jellyfish in the water column and avoid contact with the seabed to prevent encounters with sea urchins and stonefish. Typical dive duration is approximately 45 minutes.

Golac is a reef site located in the Kvarner Gulf, accessible exclusively by boat. The site features visibility ranging from 10 to 50 metres and mild currents, making it suitable for intermediate divers. Water temperatures fluctuate significantly throughout the year, from 13C in March to 26C in July and August. Divers should exercise caution regarding boat traffic when surfacing and use a surface marker buoy. Protective gear is recommended to prevent injury from sharp coral and rocks during entry and while navigating the reef. Always confirm facility arrangements with a local operator before departure, as no services are guaranteed on site.