Seepolizei is a wall dive site located in Lake Neuchâtel, Switzerland, offering depths ranging from 1 to 40 metres with an average of 20 metres. The site features two primary entry points: a set of stairs equipped with a railing for easy access, and an alternative jump-in entry from the jetty located behind the Lake Police boat hall. Divers should be prepared for moderate currents and visibility that fluctuates between 3 and 15 metres. Due to the cold water conditions, this site is best suited for intermediate divers. The topography consists of a wall structure, providing a distinct profile for exploration within the Jura Lakes region.

Twann in Lake Neuchâtel offers a shore-entry experience featuring an artificial reef and a wreck. The site is suitable for beginners, with depths ranging from 5 to 30 metres. Visibility typically varies between 5 and 15 metres. Divers should be aware of variable currents and maintain caution around the wreckage to avoid entanglement. The site is accessible year-round and supports night diving. Parking is available near the shore, facilitating gear transport for visitors. Divers must hold an open water certification to explore the site.

Bielersee-Unterwasserquellen is a freshwater shore-entry dive located in Lake Neuchâtel. The site features an artificial reef and a wreck, providing two distinct structures to explore at depths between 20 and 30 metres. Conditions are generally calm with no current, making it suitable for beginners. Divers should be aware of potential boat traffic at the surface and exercise caution regarding entanglement risks when navigating the structures. Visibility typically ranges from 5 to 10 metres, and carrying a torch is recommended to assist with navigation. The site is accessible for night diving and remains open for diving throughout the year.

Bielersee-Strandbad in Lake Neuchâtel offers a shore-accessible dive featuring both natural and artificial reef structures. The site reaches depths of 20 to 30 metres, with an average depth of 15 metres, providing a calm environment for beginner divers. Visibility typically ranges from 5 to 15 metres. Divers must prepare for cold water temperatures and the presence of a thermocline. Due to boat traffic near the shore entry point, the use of a delayed surface marker buoy is essential during ascent. Facilities at the site include parking, toilets, showers, changing rooms, and a cafe, supporting a full-day excursion.

Bielersee-St Joux is a freshwater dive site in Lake Neuchâtel featuring a combination of natural and artificial reef structures. Suitable for beginners, the site offers a sheltered shore entry with no current. Divers can explore depths ranging from 10 to 20 metres, with an average depth of 15 metres. Visibility typically ranges between 5 and 15 metres. The site is accessible year-round and supports night diving. Divers should be prepared for cold water temperatures and maintain high situational awareness regarding boat traffic, particularly when near the surface or entering from the shore. Parking is available on-site, and guided tours are offered for those unfamiliar with the reef layout.

Tüscherz Bahnhof is a freshwater dive site located in Lake Neuchâtel, featuring an artificial reef and a drop-off. Divers can explore depths ranging from 5 to 24 metres, with an average depth of 15 metres. The site is accessible via a shore entry and is suitable for beginners, though divers should be prepared for strong currents. Visibility typically ranges between 5 and 15 metres. Facilities at the site include parking, changing rooms, toilets, and air fills. Night diving is permitted, and the site is frequently used for navigation and rescue training. Typical dive duration is approximately 40 minutes.

Nidaukanal at Restaurant Blue Marlin is a freshwater dive site in Lake Neuchâtel featuring an artificial reef structure. Divers typically explore between 10 and 20 metres, with an average depth of 15 metres. Visibility ranges from 5 to 12 metres. The site is accessible via shore entry and is suitable for beginners, though divers must be prepared for overhead environments and potential rip or strong currents. Active boat traffic on the canal requires the use of a surface marker buoy during ascents. Night diving is permitted at this location. On-site facilities include parking and a dive shop for gear and tank fills.

CTS Biel is a shallow shore dive located in Lake Neuchâtel, Switzerland. The site features a depth range of 1 to 4 metres, with an average depth of 2 metres, making it suitable for beginner divers and skills practice. Visibility typically ranges from 5 to 15 metres, and the site experiences mild currents. Divers should be aware of boat traffic when surfaced and prepare for cold water conditions year-round. Facilities include parking, toilets, changing rooms, and showers. Night diving is permitted at this location. The habitat supports various temperate freshwater fish and invertebrates typical of the region.