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The Seegrotte in Hinterbrühl is one of the most unusual day trips from Vienna. This former gypsum mine flooded in the early 20th century and today holds one of the largest underground lakes in Europe. Visitors take a guided walk through the old tunnels and then glide across the lake by boat. The temperature inside stays cool all year round, so it is a great idea both in summer heat and on a rainy day.
Hinterbrühl lies in the Vienna Woods, approximately 20 km south-west of the city centre. Here is how to get there by private transfer, train and bus.
Private transfer or car
By car the trip takes approximately 25-35 minutes, depending on where you start in Vienna and on traffic on the A21 or the roads through Mödling. A private transfer is especially handy because you can combine the Seegrotte with other nearby sights in the same half day.
- Pickup from your hotel and drop-off right at the entrance.
- The driver can wait during the visit and take you back or onwards.
- Easy to add Mödling, Liechtenstein Castle or Heiligenkreuz Abbey.
- Comfortable for families with children and older travellers.
Train and bus
The most common public transport route is a suburban train (S-Bahn) from Vienna to Mödling, which takes about 15-20 minutes from the main stations. From Mödling station regional buses run towards Hinterbrühl and stop near the Seegrotte. Overall, allow around 45-60 minutes from central Vienna, depending on connections.
Badner Bahn and other options
Some visitors use the Badner Bahn light rail from the Vienna Opera area towards the south and continue by bus or taxi. It is a scenic ride, but slower than the S-Bahn. A taxi from Mödling station to the Seegrotte is short and convenient if you miss a bus.
Tips for visiting the Seegrotte
Bring a light jacket, as it stays cool underground even in summer.
Wear comfortable shoes, the tour includes walking on uneven ground and steps.
Tours run regularly, but it is wise to check current opening times before you go.
Combine your visit with Liechtenstein Castle in Maria Enzersdorf, only a few minutes away by car.
Why choose a private transfer
Public transport to Hinterbrühl works, but it requires a change and some waiting, especially at weekends. With a private driver you leave when you want, arrive in under 40 minutes and can easily build a half-day or full-day tour of the Vienna Woods. Our private tours can include the Seegrotte together with other highlights near Vienna. For groups, we offer spacious vehicles from our fleet.
Want to see Europe's famous underground lake without the hassle? Book your private transfer to the Seegrotte and enjoy a relaxed trip from Vienna.
