Nastel is a freshwater shore-entry site in Lake Thun featuring both reef and wall topography. Divers can explore a vertical wall structure that descends from 8 to 46 metres, with an average depth of 15 metres. Conditions include mild currents and visibility ranging from 5 to 15 metres. Due to the cold water, which fluctuates between 10°C and 18°C, thermal protection such as a drysuit or thick wetsuit is essential. The site is suitable for intermediate divers who should be prepared for variable visibility. Parking is available at the site, facilitating straightforward gear transport for shore entries. Typical dive times are approximately 40 minutes.

Wasserfall is a shore-entry wall dive located in Lake Thun, Switzerland. The site features a wall structure that descends between 20 and 40 metres, with an average depth of 30 metres. Visibility is consistently 10 metres, and the absence of current allows for a controlled dive profile. Due to the depth and cold water temperatures, which can reach 4°C in winter, this site is suited for intermediate divers. Thermal protection such as a drysuit or thick wetsuit is recommended. Divers should monitor their proximity to the wall to avoid entanglement. Species recorded around this area include snail, common perch, burbot, barbel, and American crayfish.

Kleine gelbe Wand is a shore-entry wall and reef dive located in Lake Thun. The site features a wall structure that descends into depths between 20 and 40 metres, with an average depth of 30 metres. Visibility is consistently around 5 metres, making a torch useful for observing details on the wall face. There is no current, allowing for a methodical dive along the structure. Species recorded around this area include snail, common perch, burbot, American crayfish, barbel, bullhead, and pike. Divers should arrange air fills and equipment in advance as facilities are not confirmed on site. This site is suitable for intermediate divers comfortable managing depth limits.

Frau Tschanz is a freshwater dive site in Lake Thun, Switzerland, featuring a combination of wall and artificial reef structures. The site profile ranges from 20 to 40 metres, requiring intermediate skills and careful depth management. Divers access the water via a shore entry. Visibility typically ranges between 5 and 10 metres. As the site is located in an active area, boat traffic is a primary hazard; divers should remain vigilant at the surface and deploy a surface marker buoy before ascending. On-site facilities include parking, toilets, and a cafe, providing convenient logistics for before and after your dive.

Fischbalme is a freshwater wall dive in Lake Thun, Switzerland, characterised by a steep drop-off that descends from 20 metres to 140 metres. The site is suitable for intermediate divers who can manage significant depths and the associated risk of nitrogen narcosis. Navigation involves following the wall face, as visibility is generally limited to 5 metres. There is no current, allowing divers to explore the structure at a controlled pace. Shore entry is straightforward, with parking available directly at the site. Given the depth and visibility conditions, guided tours are recommended for those visiting for the first time to ensure safe ascent profiles.

Kanzel is a freshwater reef dive located in Lake Thun, Bernese Oberland. This shore-entry site features a reef structure that descends into deeper water, with the primary diving range situated between 20 and 40 metres. Conditions are generally calm with no significant current, providing a stable environment for buoyancy practice. Visibility is typically around 5 metres, which is characteristic of this alpine lake. Due to these visibility levels, a dive torch is recommended to assist in observing the reef structure and detail during your dive. Divers should remain mindful of their depth and stay within the limits of their personal training while exploring the reef.

Ruedi-Walter-Platz in Lake Thun offers a combination of reef and wall topography suitable for intermediate divers. The site features a wall that descends from 20 to 40 metres, providing a deep-water experience in a freshwater alpine environment. Visibility at the site typically ranges between 5 and 15 metres. Entry is via the shore, and there is no current to manage during the dive. Divers should arrive self-sufficient with a full kit as facilities are not guaranteed on site. Species recorded around this area include snail, common perch, barbel, American crayfish, burbot, pike, chub, and bullhead.

Baetterichhoehle is a shore-entry freshwater dive site located in Lake Thun. The topography consists of deep water, with depths ranging between 60 and 80 metres. Divers should expect visibility of approximately 5 metres, which requires careful navigation. The site is characterised by an absence of current, assisting with buoyancy control during the descent and ascent. Given the significant depth, this site is intended for experienced divers with appropriate technical certification. Divers are advised to check locally for facility availability and site conditions before arrival, as these can vary.