Angerlloch

The Angerlloch is an active water cave in the Estergebirge near Wallgau with two adjacent entrances, a surveyed length of 1469 metres and a height difference of approx. 40 metres.

Wallgau 600m 40m

The Angerlloch is an active water cave in the Estergebirge near Wallgau with two adjacent entrances, a surveyed length of 1469 metres and a height difference of approx. 40 metres.

Characteristics

• Type: Cave
• Municipality: Wallgau
• Length: 600 meters
• Depth: 40 meters
• Record updated: November 13, 2026

Caves are protected biotopes (§30 BNatSchG). Caves used by bats as winter quarters must not be entered from 1 October to 31 March (§39(6) BNatSchG), except show caves and their developed parts.

Location

The Angerlloch is a karst cave in the municipal area of the Upper Bavarian municipality of Wallgau in the district of Garmisch-Partenkirchen in Bavaria, just under two kilometres as the crow flies south-east of the Walchensee. It is located in the Estergebirge near Wallgau on the eastern slope of the Simetsberg at an altitude of about 890 metres.

Map

Entrances

Always verify coordinates and access conditions before setting out.

1. Angerlloch

   47.560109, 11.286934
   UTM 32T (ETRS89) 672036.1320004929 5269944.4689989025
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Photos

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© Folke · CC BY-SA 3.0, https://creativecommons.org/licenses/by-sa/3.0/ · Wikimedia Commons · https://commons.wikimedia.org/wiki/File:Angerlloch,_Zugang,_2008.jpg

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Description

Morphology

The cave is accessible via two adjacent entrances about 10 metres apart and has a surveyed length of 1469 metres with a height difference of approx. 40 metres. The passages are aligned along two intersecting joint directions on two levels. Both entrances can be closed with steel grilles.

Speleothems

The cave stream flows through several sumps, a waterfall, beautiful sinter basins, plunge pools and several lakes.

Hydrology

The Angerlloch is an active water cave. At the time of snowmelt and after heavier rainfall, the lower entrance is often under water.

Progression

In the first section, the passages essentially follow the cave stream up to a large sump, the Volksbad, which takes its name from the steep, slippery walls that must be climbed when bypassing it, something that often fails spectacularly. Behind this bypass, cave explorers used to be able to sign the cave book at the Kristallsiphon. In the deepest part of the cave, further progress requires siphoning and wading through the 25-metre-long Kristallsiphon, climbing a 5-metre-high clay wall and abseiling into a 7-metre pit above the Eisensee. A visit is recommended only for experienced cave explorers and with suitable equipment (mountain boots, climbing harness, rope, overalls, helmet, headlamp, sufficient battery supply).

Other details

Because of its proximity to the valley, the Angerlloch has long been known and well researched. The cave is very popular among cave explorers as a training ground and is also used for cave rescue exercises and for guided tours by youth groups. The cave has been designated a valuable geotope by the Bavarian State Office for the Environment (geotope number: 180H001).

Bio

In winter, the cave is protected because of the bats hibernating there and may not be entered between 1 October and 30 April of each year by order of the nature conservation authority.

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Source: Geotopkataster Bayern (Bayerisches Landesamt für Umwelt) (www.umweltatlas.bayern.de), modified. CC BY 4.0, https://creativecommons.org/licenses/by/4.0/ Datenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de · https://www.umweltatlas.bayern.de/mapapps/resources/reports/sb_geotope/generateBericht.pdf?additionallayerfieldvalue=180H001 · data as of 2026 · Contains information from Grottocenter (Wikicaves), grottocenter.org, made available under the Open Database License (ODbL 1.0, https://opendatacommons.org/licenses/odbl/1-0/), modified. · depth, length · obtained 2026-11-13 · https://grottocenter.org/ui/entrances/23567 · data as of 2026 · Contains information from © OpenStreetMap contributors, www.openstreetmap.org, made available under the Open Database License (ODbL 1.0, https://opendatacommons.org/licenses/odbl/1-0/), modified. · names · obtained 2026-11-13 · https://www.openstreetmap.org/node/3089188392 · data as of 2026 · Source: Wikidata – cave items (Germany) (www.wikidata.org), modified. CC0 1.0, https://creativecommons.org/publicdomain/zero/1.0/ Wikidata (CC0 1.0) · data as of 2026 · Source: German Wikipedia – article leads (cave descriptions) (de.wikipedia.org), modified. CC BY-SA 4.0, https://creativecommons.org/licenses/by-sa/4.0/ Wikipedia contributors (de.wikipedia.org), CC BY-SA 4.0 · Text by Wikipedia contributors (Angerlloch) · adapted by Espeleoworld (normalized, translated); the adaptation is licensed CC BY-SA 4.0, https://creativecommons.org/licenses/by-sa/4.0/ · description · obtained 2026-11-13 · https://de.wikipedia.org/wiki/Angerlloch · data as of 2026 · The derived data is available on request under the ODbL: [email protected]