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Traunsee

Austria's deepest lake, under the wall of the Traunstein, with a castle on an island at Gmunden.

Updated 21 October 2026

Typelake
WhereUpper Austria
Nearest cityGmunden; Bad Ischl about 25 km
Best seasonMay to September
Time to allowA day
Getting thereGmunden at the northern end; road, rail and lake steamers along the shore
EntryFree at public shores; boat fares

The Traunsee is about twelve kilometres long and a hundred and ninety metres deep, which makes it the deepest lake in Austria, held in a steep trough at the northern edge of the limestone Alps with the Traunstein rising to 1,691 metres straight off the eastern shore - a wall that has a long and grim history in Austrian climbing. Gmunden at the north end is a ceramics town, known for the green-striped Gmundner pottery, with Schloss Ort standing on a small island connected by a wooden footbridge, which is the picture everyone takes. Lake steamers have run since 1839 and one paddle steamer from 1871 still operates. Traunkirchen on the western shore has a baroque church with a pulpit carved as a fishing boat and net.

Highlights

  • Austria's deepest lake - 190 metres, under the wall of the Traunstein.
  • Schloss Ort - the island castle at Gmunden reached by a wooden footbridge.
  • Gmundner ceramics - the green-striped pottery made in the town.
  • Historic lake steamers - services since 1839, including an 1871 paddle steamer.

When to go

May to September. A day.

Practical notes

The lake is deep and cold; swimming is bracing even in August. The eastern shore road is narrow and busy. Weather here is wet - this is the northern edge of the Alps.

Nearby

Bad Ischl and the Salzkammergut lakes are south; Linz is north.

Key facts

Area24 km² (9.4 sq mi)
Length12 km (7.5 mi)
Location47.8667° N, 13.8000° E · map

Source: Wikidata, item Q250907, read on 18 October 2026.

What to pack for Traunsee

Chosen from what this place is for. Tap a kit for the full checklist.

  • Travel rod + reel - A packable multi-piece rod fits in a case and covers most holiday fishing. Find on Amazon
  • Reef-safe sunscreen - High SPF that will not bleach the coral you are swimming over. Find on Amazon
  • Quick-dry clothing - Board shorts or synthetics that shrug off spray and dry fast. Find on Amazon
  • A small tackle selection - Hooks, weights, line and a few lures or flies suited to local waters. Find on Amazon

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Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.

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