Oeschinensee-Ost is a freshwater reef dive located in the Swiss Alps. Divers access the site from the shore, descending into depths ranging from 20 to 56 metres, with an average depth of 30 metres. Visibility at the site typically spans 5 to 15 metres. Due to the glacial meltwater feeding the lake, water temperatures remain consistently cold, rarely exceeding 15°C. Divers must be prepared for these conditions with appropriate thermal protection, such as a drysuit. The site is suitable for intermediate divers, and facilities including parking and toilets are available on-site to assist with logistics.

Gipsunion is a freshwater reef site located on the shores of Lake Thun in the Bernese Oberland. The topography features a distinct reef structure punctuated by unusual underwater igloos. Divers can expect visibility ranging from 5 to 10 metres with no significant current. The site reaches depths between 20 and 40 metres, making it suitable for both beginners in the shallower sections and experienced divers looking for deeper profiles. Access is via a simple shore entry. Due to the cold water temperatures, a drysuit or a thick wetsuit with hood and gloves is strongly recommended for all divers.

Restaurant Lido in Lake Thun offers a shore-accessible dive featuring a combination of natural and artificial reef structures. The site reaches depths between 20 and 40 metres, with an average depth of 25 metres. Divers should expect visibility ranging from 5 to 10 metres. Due to the significant depth and cold water temperatures, which vary from 4 to 20 degrees Celsius depending on the season, adequate thermal protection is required. The site presents potential entanglement risks near the artificial structures, and divers must manage their depth carefully. Facilities including parking, toilets, showers, and a cafe are available on site, making it a practical base for a full day of diving.

Spiezwand in Lake Thun offers a distinct freshwater wall dive featuring submerged trees along the rock face. The site reaches depths between 5 and 30 metres, with an average depth of 15 metres. Divers should anticipate mild currents and visibility ranging from 3 to 10 metres. Water temperatures fluctuate significantly, from 4°C in winter to 19°C in summer. Due to the potential for cold water, entanglement risks, and low visibility, this site is suited for intermediate divers. Shore access is supported by local facilities including parking, showers, changing rooms, a rinse station, air fills, a dive shop, and a cafe.

Seezeichen is a shore-entry freshwater dive site located in Lake Thun. The topography features a reef structure that descends from a shallow 5 metres to a maximum depth of 46 metres, with an average depth of 15 metres. Divers should anticipate moderate currents and visibility ranging between 6 and 10 metres. Due to active boat traffic in the area, it is essential to remain alert while surfacing and to deploy a surface marker buoy. The site is suitable for intermediate divers, with parking available nearby to facilitate gear transport. Typical dives last approximately 40 minutes, though conditions vary significantly with seasonal temperature changes.

Frankenstein is a shore-entry dive site located in Lake Thun, Switzerland. The site features shallow, calm water that is well-suited for divers gaining experience or working on buoyancy control. As a shore dive, it offers straightforward logistics without the need for a boat. Conditions at this location are variable, with visibility and currents shifting frequently. Divers should confirm local conditions immediately prior to arrival and plan to be self-sufficient, as on-site facilities are not guaranteed. The site provides a quiet environment for practice in a freshwater lake setting.

Spiez Wallrain is a freshwater site located directly below Spiez Castle in Lake Thun. This reef and artificial reef site features a pebble-bottomed bay, providing an accessible environment for snorkelers. Entry is facilitated by secured steps leading directly into the water. The site offers depths ranging from 2 to 15 metres, with an average depth of 8 metres. Visibility at this location typically varies between 6 and 10 metres. The site is suitable for beginners and includes toilet facilities for visitors. A typical session lasts approximately 45 minutes.

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.