Underwater No. 1 is a freshwater dive site located in Fühlinger See, Germany. The site offers a maximum depth of approximately 7 metres and is accessible via a shore entry. Visibility at this location typically ranges between 3 and 4 metres. The site is suitable for intermediate divers and supports night diving activities. On-site facilities include parking, a cafe, guided tours, air fills, and equipment rental services. As a freshwater environment, the site provides a controlled setting for training and recreational diving.

Fühlinger See is a freshwater lake featuring an artificial reef structure that provides a sheltered environment for divers. The site offers depths ranging from 3 to 18 metres with an average of 10 metres. Entry is via the shore, and divers encounter mild currents. Visibility is highly variable, ranging from 1 to 15 metres. The site is suitable for beginners and supports night diving. Divers should be prepared for cold water temperatures and exercise caution near overhead environments. Facilities include parking, air fills, equipment rental, and a cafe. The habitat supports various temperate freshwater fish and invertebrates typical of the region.

Fühlinger See is a freshwater site in Germany offering shore entries for both divers and snorkellers. The lake features depths ranging from 2 to 18 metres, with an average depth of 10 metres. Divers should be prepared for variable visibility between 0 and 15 metres and the presence of thermoclines. The site is suitable for beginners and supports night diving, with typical dive durations of 50 minutes. Facilities include parking, toilets, showers, changing rooms, air fills, equipment rental, a cafe, a dive shop, and guided tours. Hazards include boat traffic, cold water, low visibility, and thermoclines. The habitat supports various temperate freshwater fish and invertebrates.

Bleibtreusee is a shore-entry freshwater dive site in western Germany, offering a consistent maximum depth of 13 metres with an average depth of 7 metres. The site is characterised by flat topography and an absence of current, though visibility is variable, typically ranging between 3 and 5 metres. Divers should be prepared for potential entanglement risks and overhead environments, requiring solid buoyancy control and navigation skills. The site is well-equipped for a full day of activity, featuring on-site parking, toilets, showers, a cafe, and a dive shop. Due to the limited visibility, early morning dives are recommended to maximise available surface light.

Fühlinger See is a freshwater site in Germany offering shore access for divers of all levels. The topography allows for depths between 5 and 40 metres, with an average depth of 15 metres. Divers should be aware of thermoclines and potential overhead environments. Visibility typically ranges from 5 to 20 metres, and currents remain mild. The habitat supports various temperate freshwater fish and invertebrates typical of the region. Due to the presence of sharp rocks and entanglement risks, thorough buddy briefings are recommended before entry. Divers should verify current facility availability and site access conditions locally prior to arrival.

Heider Bergsee is a former quarry lake in western Germany featuring an artificial reef structure. The site offers a calm, current-free environment with depths ranging from 2 to 8 metres, averaging 3 metres. It is well suited for beginner divers and those practising skills. Visibility typically ranges between 3 and 4 metres. Divers can explore the artificial reef, which provides habitat for temperate freshwater fish and invertebrates. The site is accessible via shore entry and supports night diving. Divers should remain aware of potential entanglement risks near artificial structures and overhead environments, and maintain vigilance regarding boat traffic when near the surface.

Hitdorfer See is a freshwater quarry lake in western Germany featuring an artificial reef structure designed to provide a clear focus for divers. The site offers a calm, current-free environment suitable for beginners, with depths ranging from 4 to 18 metres. Entry is via the shore. Visibility varies between 2 and 10 metres, with clearer conditions often found during cooler months when algae growth decreases. The site is well-equipped for a full day of activity, providing on-site parking, toilets, changing rooms, a dive shop, and air fills.

Grosser Monheimer See is a freshwater lake in Germany offering calm, current-free conditions suitable for beginner divers. Shore entry provides straightforward access to a reef area that ranges from 7 to 14 metres in depth, with an average of 10 metres. Visibility typically fluctuates between 5 and 10 metres, and divers should remain aware of potential entanglement risks and variable visibility. The site supports a variety of temperate freshwater fish and invertebrates typical of the region. On-site facilities include parking, showers, air fills, equipment rental, and guided tours, making it a practical location for those without their own gear.