astacus.ch · Community
Freshwater wall description, risks, and fish-life emphasis.
Dive Spot Guide•
Halbinsel Au
Steep Zürichsee wall dive for experienced divers, with freshwater structure.
Halbinsel Au is a steep Lake Zurich wall dive with a park approach, but the Vorder Au entry is closed for repairs until April 2027.
About Halbinsel Au
Halbinsel Au is a classic Zürichsee wall dive with a shore entry through the park, a steep drop-off, and a long profile full of cracks, crevices, boulders, and small pockets of structure. It suits experienced cold-water divers who want a demanding freshwater wall rather than an easy training site, with burbot, perch, pike, bass, and trout among the most likely sightings when the site is open.
•
Research Estimate At Halbinsel Au
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 7m
AccessChallenging entry effort
Aquatic LifeGreat variety
FacilitiesBasic facilities
CurrentLight current
SurgeFlat calm
Where Is Halbinsel Au?
This spotNearby spotsExplore nearby spots on the map
Community sourced coordinates.
Halbinsel Au Planning Details
Depth range, seasonality, and planning context.
Reported Depth
10m - 50m
Depth Note
First wall is encountered at about 10 m and reaches just under 20 m at that point; the wall then continues descending to 50 m.
Best Season
Year-round when open
Typical Conditions
Cold freshwater, a steep wall profile, cracks and crevices, boulders, and limited shelter; boat traffic matters near the landing stage.
Safety & Access At Halbinsel Au
Hazards, restrictions, and access requirements.
Key Hazards
Boat trafficOverhead environment
Safety Notes
The wall drops very deep, so plan gas and depth limits conservatively and stay within training and experience. Boat traffic also matters near the landing stage.
Access Restrictions
The Vorder Au entry is closed for shoreline repairs until about April 2027, and the official notice says the access zone is not reachable from land or water. When open, expect a steep walk from the peninsula parking area to the entry by the landing stage.
Legal Notes
Official notices describe the Vorder Au shoreline wall as unstable and part of a renovation zone, so do not treat the lake entry as open until the closure is lifted.
Local Intel For Halbinsel Au
Community notes to help plan your visit.
Scuba Diving
A shore-entry wall dive with a steep profile, cracks, crevices, boulders, and small caves or chimneys that suit experienced freshwater divers.
Freediving
Not a baseline freedive site; the steep wall and depth make scuba the practical choice when the site reopens.
Snorkeling
Snorkeling is limited to the shoreline approach and is not the main draw; the site is built around the underwater wall.
Wildlife at Halbinsel Au
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Halbinsel Au
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Halbinsel Au
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility7m
Activity
No dive activity logged yet.
