Plavnic Cave on Krk Island offers a diverse underwater topography combining a cave system, a vertical wall, and a reef. Located 1000 metres from shore, this site requires boat access and is suited for intermediate divers due to the overhead environment and depths ranging from 20 to 40 metres. Visibility typically spans 10 to 30 metres, providing clear sightlines for navigating the cave and wall. Currents are generally mild, though divers must remain cautious of boat traffic when surfacing. Water temperatures fluctuate significantly throughout the year, ranging from 12 to 25 degrees Celsius, necessitating appropriate thermal protection for the conditions.

The Mafia Wreck is a boat-accessible dive site located off Krk Island in the Kvarner region. The wreck rests on the seafloor at depths between 30 and 40 metres, requiring intermediate certification and careful management of bottom time and no-decompression limits. Visibility at the site varies from 10 to 30 metres. Divers should exercise caution regarding entanglement risks when navigating the structure and avoid enclosed sections unless properly trained. Water temperatures fluctuate significantly throughout the year, ranging from 12C in the winter months to 25C during the peak of summer.

Indiana is a shallow reef located off Krk Island, Croatia, suitable for beginners building underwater confidence. The site features a maximum depth of 2 to 3 metres and is accessed exclusively by boat. Divers can expect visibility ranging from 5 to 10 metres with no significant current to manage. Water temperatures fluctuate seasonally between 12 and 25 degrees Celsius, requiring appropriate thermal protection depending on the time of year. Typical dives last approximately 30 minutes. As there are no facilities on site, divers should arrange transport and confirm current conditions with a local dive operator before arrival.

Treca vala on Krk Island offers a diverse underwater environment combining reef structures and cave sections. Suitable for intermediate divers, the site spans a depth range of 1 to 30 metres. Visibility typically ranges between 10 and 25 metres, assisting navigation between the reef and cave features. Water temperatures fluctuate between 12 and 18 degrees Celsius, requiring appropriate thermal protection. While conditions are generally mild, the site is subject to strong currents that can develop unexpectedly. Divers may access the site from the shore or by boat. Always monitor local conditions closely before entry and ensure you are prepared for deeper water.

Kormat is a reef site located off Krk Island in the Kvarner Gulf. The topography consists of a reef structure spanning depths between 20 and 40 metres, making it suitable for intermediate divers. Access is strictly by boat. Visibility at the site ranges from 10 to 30 metres, and the area is generally free of currents. Divers should monitor their air consumption and depth closely due to the significant profile. Species recorded around this area include wrasses, bream, two-banded seabream, crabs, sea stars, and various nudibranchs such as the Cratena slug and Mediterranean violet aeolid. Sharks are noted as a potential hazard in this region.

Cres Mezulin, located off Krk Island, offers a diverse underwater landscape featuring a reef, wall, cave system, and drop-off. This boat-only dive site is suited for intermediate divers, with depths ranging from 20 to 40 metres. Visibility typically spans 10 to 30 metres. Divers should be prepared for mild currents that can occasionally strengthen around the wall and cave sections. Maintaining good buoyancy is essential to avoid contact with sharp coral and rocks. Water temperatures remain cool, ranging between 12 and 17 degrees Celsius throughout the year, making a 5mm or 7mm wetsuit necessary for comfort during the typical 45-minute dive duration.

The Nanos is a technical wreck dive located off Krk Island, resting at depths between 70 and 93 metres. This site is strictly for advanced divers, requiring trimix certification and decompression procedures due to the significant depth and overhead environment. The wreck structure features various recesses and surfaces that host scorpionfish, conger eels, forkbeard, John Dory, nudibranchs, sponges, and California spiny lobster. Divers must manage gas supplies carefully to mitigate nitrogen narcosis risks. Access is by boat only, and conditions include moderate currents and variable visibility. Thermal protection is essential, as water temperatures fluctuate between 12C and 25C throughout the year.

Galun - Amfore is a multi-faceted dive site located off Krk Island, Croatia, featuring a combination of natural reef, a wreck, and artificial reef structures. The site is accessible only by boat and is suitable for beginner divers, though they should remain mindful of their depth limits within the 15 to 33-metre range. Visibility typically spans 5 to 10 metres, requiring close proximity to a buddy or guide. Divers should exercise caution regarding entanglement risks when navigating the wreck and wear protective gloves to avoid injury from sharp coral and rocks. The current is generally mild, allowing for manageable navigation during a typical 45-minute dive.