Lopper I, located near the Lopper tunnel in the Vierwaldstaettersee region, offers a gentle sloping bottom suitable for beginner snorkellers. The shoreline is characterised by submerged roots and rocks, which provide structure within the freshwater environment. Access is via a shore entry, making it a convenient location for those looking for a relaxed snorkelling experience. The site is rated 3/5 for snorkelling, reflecting its accessibility and the nature of the underwater topography. Divers and snorkellers should be aware that conditions in this lake can vary, and they should plan their entry and exit points according to the local shoreline features.

Lopper I Hergiswil is a freshwater dive site located near Weggis-Vitznau, offering a wall and artificial reef topography. The lakebed slopes steadily, allowing for dives between 5 and 40 metres, with an average depth of 15 metres. Divers typically enter via a small staircase from the shore. The site is suitable for intermediate divers, with mild currents and the option to navigate either left or right from the entry point. Facilities at the site include parking and toilets, with air fills available nearby. Due to the depth and potential for boat traffic, divers should maintain appropriate safety protocols throughout their 40-minute average dive.

Steinibach Delta in Weggis-Vitznau offers a freshwater shore dive characterised by its stream delta topography. The site reaches depths of 70 metres, making it suitable for various skill levels, though divers should remain aware of cold water, significant depth, and local boat traffic. The underwater environment supports a range of temperate freshwater fish and invertebrates typical of the region. Facilities at the site include parking, showers, changing rooms, and toilets, alongside a barbecue area. Night diving is permitted at this location, which is rated 4 out of 5 for diving quality.

Lopper Kaenzeli in Vierwaldstaettersee offers a diverse freshwater topography featuring a wall, reef, and canyon. Designed for intermediate divers, the site reaches depths between 20 and 40 metres. Divers enter from the shore, encountering mild currents and visibility ranging from 5 to 15 metres. A thermocline is typically present, with temperatures dropping to 5-6°C at depths below 20 metres. Due to the significant depth and cold water, a drysuit or thick wetsuit with gloves is recommended. Divers should maintain strict buoyancy control to navigate the canyon structure and mitigate entanglement risks. Parking is conveniently located at the entry point to facilitate gear preparation.

Alpnachersee-Badeplatz is a calm freshwater dive site in Central Switzerland, well-suited for beginners building confidence in open water. The site features a combination of reef structures and seagrass beds, providing a straightforward environment for practising buoyancy and navigation. Divers can expect a maximum depth of 15 metres, with an average depth of 10 metres. The entry is from the shore, and typical dives last around 40 minutes. Visibility ranges from 5 to 10 metres, though this can shift depending on local weather and runoff. Facilities such as parking and changing areas should be confirmed with a local dive centre or the site operator prior to arrival.

Lopper Acheregg is a freshwater wall dive located in Weggis-Vitznau, Switzerland. The site features a steep rock face that drops from 20 to 40 metres. With no current, it provides a stable environment for divers to practice buoyancy and depth control along the wall. Visibility typically ranges between 5 and 10 metres. Due to the cold water temperatures found in this Alpine lake, a drysuit or a thick wetsuit with hood and gloves is recommended. Divers must remain vigilant for boat traffic at the surface during entry and exit, and monitor their depth carefully as the wall reaches 40 metres.

Harissenbucht is a shore dive located on Lake Lucerne in Weggis-Vitznau. This freshwater site features a reef structure that slopes from shallow water to depths between 20 and 40 metres, allowing divers to select a profile suitable for their certification level. The site is known for calm, current-free conditions, making it a practical choice for beginners. Visibility typically ranges from 5 to 10 metres. As an alpine lake, water temperatures can be low, particularly in winter, so appropriate thermal protection such as a drysuit or thick wetsuit is recommended. Divers should verify the availability of local facilities before arrival as amenities may change seasonally.

Alpnachersee-Schiessueberwachung is a freshwater shore-entry site located in the Weggis-Vitznau area of Switzerland. The topography consists of reef structures and seagrass beds, providing a varied environment for divers. The site reaches depths between 15 and 35 metres, with an average depth of 25 metres. Visibility typically ranges from 5 to 10 metres, and the water is generally calm with no current. A standard dive duration is approximately 40 minutes. This site is suitable for beginner divers, though those building experience should plan their profiles carefully to remain within their personal depth limits. Check locally for current facility availability before travelling, as amenities are not guaranteed.