Millstätter See comprises five distinct dive sites within one of Carinthia's deepest lakes. The topography ranges from shallow reef shelves to deep-water terrain, including the Möve wreck and rocky reef structures at sites like Liafelsen and Ostufer. Divers can explore depths between 2 and 37 metres, with visibility typically ranging from 5 to 15 metres. Conditions are variable, with currents present and a thermocline that causes significant temperature drops below 10 metres. Shore access is available at all sites, and the lake is suitable for night diving. Species recorded around this area include Wels catfish, pike, snails, common perch, sun perch, tench, chub, rudd, and roach.

The Schlossvilla is a freshwater wreck dive located in Weissensee, Austria. The wreck lies at depths between 15 and 36 metres, with an average depth of 20 metres. Due to the significant depth and cold water temperatures, this site is suitable for advanced divers only. Divers must use a boat to access the site. Visibility typically ranges from 5 to 15 metres, and conditions feature a mild current. Given the cold-water environment, a drysuit or a thick wetsuit with hood and gloves is strongly recommended. Guided tours are available through the local dive shop to assist with navigating the wreck's layout and managing the specific conditions at depth.

The Moeve Wreck is a freshwater site located in Weissensee, Austria, offering a unique wreck diving experience accessible directly from the shore. The wreck rests at depths between 30 and 36 metres, requiring intermediate diving skills and appropriate certification. Visibility typically ranges from 5 to 15 metres. Divers may encounter Wels Catfish, which are very common at the site, alongside less frequent sightings of Common Perch, Sun Perch, Tench, Pike, Roach, and Chub. The site supports night diving, where the wreck structure is well-defined under torchlight. Divers should exercise caution regarding surge during shore entry and be prepared for thermoclines. Air fills are available on-site.

Strandbad Pesenthein at Weissensee offers a combination of natural and artificial reef structures for divers to explore. This freshwater site features a straightforward shore entry, making it suitable for beginners. Divers can expect depths ranging from 5 to 14 metres, with an average depth of 10 metres. Visibility typically varies between 5 and 15 metres, and currents remain mild throughout the dive. The site is equipped with on-site facilities including air fills, showers, changing rooms, and a cafe. Night diving is permitted, and the site is accessible year-round. Divers should maintain good buoyancy to avoid contact with sharp rocks and edges present on the reef structures.

Liafels is a wall dive located on Millstätter See in the Austrian Alps. The wall begins at a depth of 8 metres and descends to 23 metres, with an average depth of 15 metres. Accessible directly from the shore, the site features mild currents and visibility ranging from 5 to 20 metres. Divers should be prepared for a thermocline and cold water temperatures, which necessitate appropriate thermal protection. The site is suitable for beginners and supports night diving, offering a distinct experience after dark. Parking is available on-site, providing convenient access for divers and snorkellers.

Camping Neubauer is an artificial reef site located in Weissensee, Austria. This freshwater dive is suitable for beginners, with an average depth of 4 metres. Divers access the site from the shore, where conditions typically feature mild currents and visibility ranging between 2 and 5 metres. Typical dives last approximately 30 minutes, and the site supports night diving. Facilities at the location include parking, toilets, showers, changing rooms, a rinse station, air fills, equipment rental, a cafe, a dive shop, guided tours, and gear storage. Hazards to consider include cold water, potential entanglement, and low visibility.

Junfernsprung is a freshwater wall and reef site located in Weissensee, Austria. Divers access the site from the shore, descending to depths of approximately 30 metres. Visibility at the site typically ranges between 5 and 15 metres. Due to the depth, divers should be prepared for cold water and the potential for nitrogen narcosis. The site is suitable for intermediate divers and supports night diving. Facilities at the location include parking, changing rooms, showers, toilets, and a dive shop. Species recorded around this area include Wels catfish, common perch, sun perch, tench, pike, snails, chub, and roach.

Liafelsen is a freshwater wall and reef site in Weissensee, Austria, offering depths between 8 and 22 metres. Suitable for intermediate divers, the site allows for both shore and boat entries. Visibility is generally around 5 metres, making the wall a focal point for navigation and buoyancy practice. Night diving is permitted and recommended, as torchlight enhances the experience along the rock face. Divers should remain alert for boat traffic in the area and monitor their position carefully due to the presence of strong currents. Parking is available at the site to assist with gear transport.