Swiss diving restrictions notice with the Lothenbach/Grindwäschi parking ban and autumn spawning closure.
Steep shore wall dive on the Walchwil Zugersee edge.
Steep shore wall dive on the Walchwil Zugersee edge.
Lothenbach is a Zugersee wall dive with a shore entry, a steep freshwater drop, and a conservative access pattern around Walchwil. It suits divers who can manage cold water, careful buoyancy, and a lake route that rewards controlled descent more than long swims or casual sightseeing. The site is best on settled days, with local parking rules and a seasonal closure that keep it quiet outside the main window.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
0m - 50m
Depth Note
The entry is shore-based and shallow at the surface, but the main wall drops quickly and reaches roughly 50 m on the deep side.
Best Season
Late spring through early autumn, outside the seasonal closure.
Typical Conditions
Cold freshwater, a steep wall, and a shore approach that depends on the permitted entry and parking.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Use only the allowed entry and parking spots, keep an eye on the lake traffic, and plan the dive as a cold-water wall profile.
Access Restrictions
Parking around the restaurant area is controlled, the private ramp and pier are not usable as entries, and the site has a seasonal no-dive window in autumn.
Legal Notes
Follow the local parking rules and the mid-October to mid-December spawning closure for the Lothenbach/Grindwäschi area.
Community notes to help plan your visit.
Scuba Diving
A controlled lake-wall profile suits conservative scuba more than loose roaming.
Freediving
Only the shallowest water near the entry is relevant for freediving, and that still needs very calm conditions.
Snorkeling
Snorkeling is limited by the rapid drop-off and the lake access constraints.
Species commonly reported at this site, with direct links into their wildlife guides.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Swiss diving restrictions notice with the Lothenbach/Grindwäschi parking ban and autumn spawning closure.
Site-specific operator page with shore entry, access warnings, and a steep wall profile.
Official tourism page for the Zugersee lake setting and lakeside public infrastructure.
Local Zugersee fishery source listing perch, pike, trout, and Zuger Rötel/char.
Know this site? Improve Spot Details.

Shore-entry Lake Zug wall dive with an easy left line.

Grafenmätteli is a steep Lake Zug wall dive for sport divers.

Steep Lake Zug wall dive for experienced divers

Baumgärtli is a Lake Zug shore dive with a steep wall.

Shore-entry Lake Zug dive with plateaus, fish, and a deeper wall option.