Lake Cauma is a freshwater site in Switzerland known for its turquoise water, which is fed by underground springs. The lake features a central wooded island, where snorkelers can observe submerged trees and limestone rock formations. Depths at the site range from 1 to 30 metres. Due to the influence of the underground springs, water temperatures are relatively warm for an alpine environment, typically between 17 and 28 degrees Celsius during the summer months. Access to the water is via the shore. Facilities available at the site include parking, toilets, showers, changing rooms, and boat charter services.

Crestasee is a secluded, forest-fringed freshwater lake offering a peaceful environment for both diving and snorkelling. The basin features deep green water with visibility that varies depending on conditions. Divers and snorkellers can explore depths reaching up to 14 metres. Entry is via the shore, making the site accessible for beginners. Facilities at the lake include a cafe, toilets, showers, changing rooms, and equipment rental. Boat charter services are also available for those wishing to explore further. The water temperature is generally cool, averaging 18°C in summer, though it can reach over 24°C during peak periods.

Crestasee is a freshwater lake located near Brunnen-Flüelen, Switzerland. The site offers a shore entry and is suitable for beginners, with depths ranging from 2 to 14 metres. The lake is surrounded by dense forest, and the shallow edges feature aquatic plants. Snorkellers can expect a typical session duration of approximately 40 minutes. Facilities available at the site include parking, toilets, showers, changing rooms, a rinse station, a cafe, and options for boat charters or guided tours. The site is well-regarded for snorkelling, providing a calm environment for exploring the lake's underwater topography.

Bacheinlauf is a freshwater wall and drop-off site located in Brunnen-Flüelen, Switzerland. The topography descends from 10 to 40 metres, with an average depth of 25 metres. Divers access the site from the shore, where parking is available. Conditions feature mild currents and visibility ranging from 5 to 25 metres. Water temperatures at depth remain consistently around 4°C throughout the year, necessitating appropriate thermal protection such as a drysuit. The site is suitable for intermediate divers and supports night diving. Due to the risk of boat traffic, divers must monitor the surface and deploy a surface marker buoy before ascending.

Seehorn Felsblöcke in Lake Lucerne offers a varied freshwater dive featuring a combination of reef, wall, and artificial reef structures. Divers can explore depths ranging from 6 to 30 metres, with an average depth of 18 metres. The site is suitable for intermediate divers who can manage cold water, potential thermoclines, and variable visibility between 5 and 15 metres. The topography provides multiple depth profiles, and night diving is possible for experienced individuals. Currents are generally mild. As facilities are unconfirmed, divers should arrive self-sufficient with all equipment prepared. The habitat supports various temperate freshwater fish and invertebrates typical of the region.

Mapraggsee-KSL is an artificial reef site located in Central Switzerland. Divers access the water via a shore entry, with depths reaching 30 metres. The site is suited for intermediate divers due to variable currents and fluctuating visibility, which typically ranges between 5 and 15 metres. Divers should monitor their surroundings closely, as visibility can drop to low levels with little warning. The artificial reef structures are distributed across the water column, allowing for varied profiles during a standard 40-minute dive. Toilets are available on-site, though other facilities are limited. Divers should arrive prepared with a surface marker buoy and necessary surface equipment.

Werkhof is a shore-entry dive site located in the Brunnen-Flüelen area of Lake Lucerne. This freshwater location features shallow, calm water and a mild current, providing a comfortable environment for beginner divers to build confidence. The site includes a reef structure that supports various temperate freshwater fish and invertebrates typical of the region. Because the depth remains shallow throughout the dive, bottom times are generally generous. Visibility at this site varies depending on local conditions. Divers should check locally for current facility availability before arrival, as on-site amenities are not confirmed.

Garichtisee-Mettmenalp is a freshwater alpine lake dive located near Brunnen-Flüelen. The site features a combination of natural reef, wall, and artificial reef structures spanning depths of 20 to 40 metres. With no current, it is accessible for beginners, though the significant depth requires careful monitoring of bottom time and air consumption. Visibility typically ranges from 5 to 10 metres. Due to the high altitude, water temperatures are cold, making a drysuit or thick wetsuit with hood and gloves essential. Shore entry is available, and the site is well-supported by facilities including parking, toilets, showers, changing rooms, air fills, and equipment rental.