Canyon is a wall and cave site located off the northern side of Grgur island near Krk Island, Croatia. Accessible only by boat, the site features a canyon topography that descends from 5 metres to a maximum depth of 40 metres, with an average depth of 25 metres. Divers and snorkellers encounter mild currents and visibility ranging from 5 to 25 metres. The site is suited for intermediate divers due to the depth and potential for nitrogen narcosis. Species recorded around this area include wrasses, scorpionfish, sea stars, crabs, bream, and various nudibranchs. Water temperatures fluctuate between 12C and 25C throughout the year.

Zuckerhut is a wall dive located off the island of Grgur, featuring a vertical drop that extends from 5 metres down to 40 metres. The site is accessible only by boat and is suitable for beginners, though divers must remain aware of moderate currents and boat traffic when surfacing. Visibility typically ranges between 10 and 30 metres, providing clear views of the wall face. Divers should monitor their depth closely throughout the 45-minute dive. As a safety precaution, beginners are advised to stay above 18 metres and maintain close proximity to their guide while keeping the wall to one side for orientation.

Kap Tanki in the Kvarner Gulf offers a diverse underwater experience combining a wall, reef, and drift dive. The site is suitable for beginners, with depths ranging from the shallows down to 40 metres. Water temperatures fluctuate between 12C and 25C throughout the year, requiring appropriate thermal protection. As a drift dive with variable currents, divers must remain attentive to conditions. Boat traffic is a notable hazard at this location; always deploy a delayed surface marker buoy before surfacing and monitor for vessels. The topography provides a varied profile for those exploring the wall and reef structures within the Cres and Lošinj area.

Aquarium Grgur is a diverse dive site located off Krk Island, Croatia, featuring a combination of wall, reef, and cave topography. The site is accessible by boat and is suitable for beginners, with depths ranging from 5 to 40 metres. Divers encounter mild currents, making navigation straightforward. The underwater structure includes rocky surfaces and crevices, with depths starting at 5 metres. Due to the presence of sharp rocks and coral, divers should maintain good buoyancy control throughout the dive. Water temperatures fluctuate between 12 and 25 degrees Celsius, requiring appropriate thermal protection. Visibility at this site varies significantly, so checking local conditions prior to departure is recommended.

Prst on Krk Island offers a diverse underwater landscape featuring a reef, wall, and cave system. The site reaches depths between 5 and 40 metres, requiring boat access. Divers encounter an overhead environment within the cave and swim-through sections, necessitating appropriate training and awareness. Conditions are variable, with water temperatures ranging from 12 to 25 degrees Celsius throughout the year. Species recorded around this area include wrasses, bream, sea stars, crabs, and various blennies. Due to the overhead environment, divers should ensure they are comfortable with limited exits before exploring the cave features.

Kap Kosaca is a shore-entry reef site located on Krk Island. This site is accessible without a boat and features shallow, calm conditions that suit newer divers. The site is diveable year-round, though visibility varies significantly depending on weather and seasonal conditions. Water temperatures fluctuate between 12C in winter and 25C in summer. Divers should check local conditions before entering the water. A 5mm wetsuit is recommended for cooler months, while a 3mm or shorty wetsuit is typically sufficient during the summer season.

Rt Kosaca on Krk Island is a wall dive that descends from the surface to 40 metres. The site is accessed exclusively by boat and features variable currents, making it suitable for beginners who manage their depth and monitor conditions carefully. Visibility typically ranges between 10 and 15 metres. Divers encounter scorpionfish, octopus, conger eels, and gorgonian sea fans along the wall face. Shallower sections feature sponges and nudibranchs, while yellowtail damselfish are active throughout the area. Due to the potential for strong currents and boat traffic, divers should remain vigilant during ascents and confirm all logistics with their dive operator before departure.

Leuchturm is a multi-feature site in the Kvarner Gulf offering a combination of vertical walls, reef sections, and cave systems. The topography extends from 8 to 45 metres, with visibility ranging between 10 and 30 metres. Divers encounter a variety of marine life, including scorpionfish, octopus, nudibranchs, conger eels, forkbeard, and spiny lobster. The wall features dense encrusting growth, including sponges and gorgonians, which increase in density at greater depths. Due to the potential for strong currents and the site depth, this location is suitable for advanced divers only. Access is strictly by boat, and divers should maintain a conservative exit margin due to unpredictable surges.