

Best for beginner divers, 20m, shore entry.
Tresorfabrik is an artificial reef site located in the freshwater Zugersee in Central Switzerland. The site features structures situated between 20 and 40 metres, with an average depth of 30 metres. Divers enter directly from the shore. Visibility typically ranges from 5 to 15 metres, and the site is characterised by calm conditions with no current. Due to the depth and cold water temperatures, which vary from 4 to 24 degrees Celsius depending on the season, a drysuit or thick wetsuit is recommended. Divers should exercise caution regarding entanglement risks when navigating the artificial reef structures. On-site facilities include a cafe, a dive shop, and air fills.
47.06537, 8.51095
The site runs year-round, so cold water is a real factor in Swiss alpine conditions and a drysuit or thick wetsuit is strongly advisable. Be mindful of entanglement risk around the artificial reef structure and keep your hoses and gauges clipped close to your body before descending.
Access info coming soon
Expected in this region. No sightings logged here yet.
Depth
20m
Visibility
5-15m
Skill Level
Beginner
Entry
Shore
Current
None
Typical Dive
40 min
The artificial reef structures are located between 20 and 40 metres, with an average depth of 30 metres.
While the site is listed for beginners, the depth range of 20 to 40 metres exceeds standard beginner limits, so newer divers should remain in the shallower sections.
Entry to the site is made directly from the shore.
The primary hazard is the risk of entanglement within the artificial reef structures. Divers should keep hoses and gauges secured close to their bodies.
Yes, the site offers a cafe, a dive shop, and air fills.
Visibility at Tresorfabrik in Arth typically ranges from 5 metres to 15 metres. Conditions vary with weather, tides, and seasons.