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Bathing waters in the district

Information on assessment and criteria can be found on the websites of the Federal Environment Agency and the Bavarian State Office for Health and Food Safety.

Assessment criteria of the EU Bathing Water Directive at the Federal Environment Agency
Overview of EU bathing sites in Bavaria and their assessment at the LGL


EU bathing waters with monthly inspection

  • Lake Bibi

    EU bathing area west bank - bathing beach

    The groundwater lake, Bibisee, was created between 1969 and 1978 by gravel extraction and is located in the municipality of Königsdorf, in the district of Wiesen directly on the B 11. The Bibisee got its name from the nickname of the owner, Cornelius Kutschke. The lake has a total water surface area of around 16 hectares and a maximum depth of 8.6 m at its deepest point. The Bibisee is an important bathing lake for the towns of Königsdorf and Geretsried, where many people come on hot summer days to cool off in the cool water and enjoy outdoor leisure activities.

    West bank bathing area - EU bathing area

    The monitoring of the bathing water quality at the Westufer bathing area by the public health department has not revealed any complaints in the last 30 years. Lake Bibi is fenced in and the sunbathing lawn around the lake is approx. 20 - 30 meters wide. On the western shore there is a water slide, a paddling pool with a depth of 0 - 20 cm and a sandpit. The bathing area is equipped with showers and toilets and is supervised by the water rescue service. There are plenty of parking spaces right by the lake. There is a terrace restaurant on the beach. The lake and bathing facilities are privately owned and are maintained and operated by the owner, Cornelius Kutschke.

    Bathing water profile
    Type of lakeQuarry pond
    Longitude/latitude n. ETRS89:11,4706 / 47,8358
    Altitude:600 m above sea level (mean water level)
    water surface:1.3 km²
    Maximum water depth:8,6 m
    artificial water level fluctuations during the bathing season:yes, > 0.5 m
    Water renewal:Lake without surface inflow
    Groundwater inflow - flow through
    Ecological status class:ÖZK 1 (very good)
    Trophy level:oligotrophic

     

    EU classification of bathing water quality
    YearRating
    2022, 2023, 2024
    Symbol: Bathing marked, symbol to inform the public about the classification of bathing waters and bathing prohibitions or advice against bathing in accordance with Directive 2006/7/EC of the European Parliament and of the Council. Source: EC Commission Decision
    © European Union Commission EC Bathing Water Directive


    Excellent bathing water quality

     

    Pre-season rehearsal
    Date

    Enterococci
    Number in 100 ml

    Escherichia coli
    Number in 100 ml

    Water temperature

    Rating

    07.05.20251951016,6°Cbacteriologically not objectionable

     

    Seasonal samples
    Date

    Enterococci
    Number in 100 ml

    Escherichia coli
    Number in 100 ml

    Water temperature

    Rating

     26.05.2025<10<1017,5°Cbacteriologically not objectionable
    23.06.2025<10<1026°Cbacteriologically not objectionable

     

  • Church Lake

    EU bathing area at the jetty Kiosk

    The Kirchsee is located approx. 45 km south of Munich in the municipality of Sachsenkam.

    The bathing area with two large wooden jetties is located on the northern shore of the Kirchsee (moor water). Parking is available. Water rescue service, toilets, kiosk.

    at the jetty, kiosk (EU bathing area)

    Outside the designated bathing areas there is a ban on entering and landing (nature reserve). It is forbidden to enter the lake with sailing boats and windsurfers or to allow animals of any kind to enter, clean or water the lake during the bathing season.

    Bathing water profile
    Type of lakenatural moor lake
    Longitude/latitude n. ETRS89:11,6228 / 47,8206
    Altitude:699.0 m above sea level (mean water level)
    water surface:0.42 km²
    Maximum water depth:16,1 m
    artificial water level fluctuations during the bathing season:no
    Water renewal:Lake with superficial inflow
    Ecological status class:ÖZK 1 (very good)
    Trophy level:mesotrophic

     

    EU classification of bathing water quality
    YearRating
    2022, 2023, 2024
    Symbol: Bathing marked, symbol to inform the public about the classification of bathing waters and bathing prohibitions or advice against bathing in accordance with Directive 2006/7/EC of the European Parliament and of the Council. Source: EC Commission Decision
    © European Union Commission EC Bathing Water Directive

    Excellent bathing water quality

     

    Pre-season rehearsal
    Date

    Enterococci
    Number in 100 ml

    Escherichia coli
    Number in 100 ml

    Water temperature

    Rating

    07.05.2025<102112,8°Cbacteriologically not objectionable

     

    Seasonal samples
    Date

    Enterococci
    Number in 100 ml

    Escherichia coli
    Number in 100 ml

    Water temperature

    Rating

    26.05.2025 <10<10 15,2°C bacteriologically not objectionable
    23.06.202510<1024,6°Cbacteriologically not objectionable

     

    Other measuring points (no EU bathing area):
    • Water guard hut - bacteriologically not objectionable (07.05.2025, water temperature 13.0 °C)

  • Lake Starnberg

    EU bathing area Municipality of Münsing, Ammerland North

    Lake Starnberg is the largest lake in Bavaria and Germany after Lake Chiemsee. It is affectionately known as "Munich's bathtub" or "Würmsee" and is located just over 20 km southwest of Munich.

    Size: 57 square kilometers, 27 km long and 5 km wide. The water depth is 128 meters. The public has access to 20 km of shoreline. Due to the construction of a ring canalization, bathing is possible at all points of the lake without hesitation.

    Bathing area of the municipality of Münsing, Ammerland Nord (EU bathing area)

    EU bathing area on the northern lakeshore road of the municipality of Münsing (access only permitted with a valid lakeshore road permit from the municipality of Münsing!), exclusively forest, with an approx. 2 - 5 m wide beach with gravel and sand, as well as a sunbathing lawn in the shade of the trees, changing rooms, toilet facilities and parking spaces available.

    The bathing area is operated and maintained by the municipality of Münsing.

    The bathing water quality at this bathing area has been checked at monthly intervals during the bathing season for 30 years and has so far been without complaint.

    Bathing water profile
    Type of lakeNatural lake
    Longitude/latitude n. ETRS89:11,3308 / 47,9181
    Altitude:584.0 m above sea level (mean water level)
    water surface:53.3 km²
    Maximum water depth:128 m
    artificial water level fluctuations during the bathing season:yes, <0.5 m
    Water renewal:Lake with superficial inflow
    Ecological status class:ÖZK 1 (very good)
    Trophy level: -

    EU classification of bathing water quality
    YearRating
    2022, 2023, 2024
    Symbol: Bathing marked, symbol to inform the public about the classification of bathing waters and bathing prohibitions or advice against bathing in accordance with Directive 2006/7/EC of the European Parliament and of the Council. Source: EC Commission Decision
    © European Union Commission EC Bathing Water Directive

    Excellent bathing water quality

     

    Pre-season rehearsal
    Date

    Enterococci
    Number in 100 ml

    Escherichia coli
    Number in 100 ml

    Water temperature

    Rating

    07.05.202510<1013,2°Cbacteriologically not objectionable

     

    Seasonal samples
    Date

    Enterococci
    Number in 100 ml

    Escherichia coli
    Number in 100 ml

    Water temperature

    Rating

    26.05.202510<1015,3°Cbacteriologically not objectionable
    23.06.2025<103225°Cbacteriologically not objectionable


    Other measuring points (no EU bathing areas):
    • St. Heinrich - bacteriologically not objectionable (07.05.2025, water temperature 12.8 °C)
    • Ambach - bacteriologically not objectionable (07.05.2025, water temperature 13.2 °C)


  • Sylvenstein Lake

    EU bathing area water guard hut

    The Sylvensteinsee is located approx. 75 km south of Munich in the municipality of Lenggries.

    Water guard hut bathing area (EU bathing area)

    The bathing area is located approx. 200 m west of the village of Fall.

    Sunbathing lawn on a slope, gravel shore and parking areas available. There are also toilets and a water rescue service on site.

    Bathing water profile
    Type of lakeReservoir
    Longitude/latitude n. ETRS89:11,5261 / 47,5692
    Altitude:752.1 m above sea level (mean water level)
    water surface:3.98 km²
    Maximum water depth:27 m
    artificial water level fluctuations during the bathing season:yes, > 1 m
    Water renewal:Lake with superficial inflow
    Ecological status class:ÖZK 1 (very good)
    Trophy level:oligotrophic

     

    EU classification of bathing water quality
    YearRating
    2022, 2023, 2024
    Symbol: Bathing marked, symbol to inform the public about the classification of bathing waters and bathing prohibitions or advice against bathing in accordance with Directive 2006/7/EC of the European Parliament and of the Council. Source: EC Commission Decision
    © European Union Commission EC Bathing Water Directive

    Excellent bathing water quality

     

    Pre-season rehearsal
    Date

    Enterococci
    Number in 100 ml

    Escherichia coli
    Number in 100 ml

    Water temperature

    Rating

    07.05.2025<10<1013,1°Cbacteriologically not objectionable

     

    Seasonal samples
    Date

    Enterococci
    Number in 100 ml

    Escherichia coli
    Number in 100 ml

    Water temperature

    Rating

     26.05.2025<10 <1013,6°Cbacteriologically not objectionable
    23.06.2025<10<1020,9°Cbacteriologically not objectionable

     

    Other measuring points (no EU bathing areas):
    • Isar inlet - bacteriologically not objectionable (29.04.2025, water temperature 12.2 °C)
    • Bridge case - bacteriologically not objectionable (29.04.2025, water temperature 12.4 °C)

  • Walchensee

    EU bathing area Walchensee - Ort, Westufer bathing area

    The Walchensee is located approx. 75 km south of Munich in the municipality of Kochel am See and is one of the largest and deepest Alpine lakes in Bavaria (over 16 square kilometers in area, around 190 m deep).

    Walchensee - Location: West shore bathing area (EU bathing area)

    The bathing area, which is particularly popular with windsurfers, is located on the western shore. Steep embankment depending on the water level. Gravel shore and spacious sunbathing lawn. Parking spaces and bicycle stands are available.
    Water guard hut, toilets, kiosk

    Bathing water profile
    Type of lakeNatural lake
    Longitude/latitude n. ETRS89:11,3194 / 47,595
    Altitude:799.5 m above sea level (mean water level)
    water surface:16.1 km²
    Maximum water depth:189,5 m
    artificial water level fluctuations during the bathing season:yes, > 1 m
    Water renewal:Lake with superficial inflow
    Ecological status class:ÖZK 1 (very good)
    Trophy level:oligotrophic

    EU classification of bathing water quality
    YearRating
    2022, 2023, 2024
    Symbol: Bathing marked, symbol to inform the public about the classification of bathing waters and bathing prohibitions or advice against bathing in accordance with Directive 2006/7/EC of the European Parliament and of the Council. Source: EC Commission Decision
    © European Union Commission EC Bathing Water Directive

    Excellent bathing water quality

     

    Pre-season rehearsal
    Date

    Enterococci
    Number in 100 ml

    Escherichia coli
    Number in 100 ml

    Water temperature

    Rating

    07.05.2025110<1010,8°Cbacteriologically not objectionable

     

    Seasonal samples
    Date

    Enterococci
    Number in 100 ml

    Escherichia coli
    Number in 100 ml

    Water temperature

    Rating

     26.05.202510 <10 12,7°C bacteriologically not objectionable
    23.06.2025<10<1020,5°Cbacteriologically not objectionable

     

    Other measuring points (no EU bathing areas):
    • Urfeld - bacteriologically not objectionable (29.04.2025, water temperature 9.7°C)
    • Lobisau campsite - bacteriologically not objectionable (29.04.2025, water temperature 10.9 °C)
    • Wide aerator - bacteriologically not objectionable (29.04.2025, water temperature 9.9 °C)
    • Niedernach - bacteriologically not objectionable (29.04.2025, water temperature 10.5 °C)
    • Sachenbach - bacteriologically not objectionable (29.04.2025, water temperature 9.9 °C)

Non-EU bathing waters:

 
WatersBact. flawlessDate of reviewWater temperature
Aufhofen pondbacteriologically not objectionable28.04.202515,8 °C
Buchner pondbacteriologically not objectionable29.04.202516,2 °C
Book Lakebacteriologically not objectionable28.04.202516,0 °C
Egold Lakebacteriologically not objectionable07.05.202516,8 °C
Harmating Pondbacteriologically not objectionable28.04.202515,2 °C
Ickinger pondbacteriologically not objectionable28.04.202517,5 °C
Kochelsee, Renken campsitebacteriologically not objectionable29.04.202513,0 °C
Kochelsee, Kesselberg campsitebacteriologically not objectionable29.04.202513,8 °C
Kogler pondbacteriologically not objectionable28.04.202514,5 °C
Lenggries Baggerweiher 3, near the parking lotbacteriologically not objectionable29.04.202514,9 °C
Schönau pondbacteriologically not objectionable29.04.202517,6 °C
Stallauer pondbacteriologically not objectionable29.04.202517,1 °C
Thanninger pondbacteriologically not objectionable28.04.202515,5 °C
Dietramszell forest pondbacteriologically not objectionable28.04.202514,8 °C