The lake with an area of 4.5 hectares is the largest thermal lake suitable for swimming. Its hot water has been known for ages, though curative properties had not been exploited until the surrounding swamp was drained by György Festetics at the end of the 18th century. The lake had become accessible and a bathhouse was built also. The first building to serve medical purposes was built in 1910. The same year the park was designed and water lilies as signature features of the lake were planted as well.
Hot and cold water is issued by springs nearly 40 meters underground and maintain the temperature of the lake at 34 degrees in summer and 24 degrees in winter. Flow rate is so high that residence time of lake water is just 3 days. The spring cave collects water from a vast karst area including Zala Hills, Keszthely Mountains and Bakony Mountains. When intensive mining operations started in Bakony in the mid-20th century flow rate of springs feeding the lake had dropped, however, has recovered by today.
Due to rich mineral content of lake water and peat medical treatments in the spa complex reduce rheumatic complaints.
Opening times
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Check service provider’s website.
Public transport
- Buses mostly start from Keszthely but direct bus services from other towns and the capital are also available.
- Get off at “Hévíz, buszpályaudvar” next to the lake.
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Directions
- The lake is situated right next to the coach station (to the south).
- The Blue (K) Trail traverses the lakeside grove.
Parking
- Paid parking around the lake. The biggest parking lots are north of the lake next to the market.
Coordinates
Recommendations nearby
The bike route connecting Lake Hévíz and the Zalakaros spa. During a thermal route, you can cycle between two spas in a rural setting.
It is worth occasionally leaving the Balaton bike circuit for a little extra adventure: the Keszthely Hills offer many smaller and larger ...
Special paddling on the never-freezing creek that carries the excess water from Lake Hévíz into the Zala river. Boarding the water in the steam ...
On this section of the National Blue Trail, we walk on the slopes of the Keszthely Mountains. Most of the route passes through populated areas and ...
Bike route connecting Kehidakustány and Hévíz. During a thermal route, we can cycle between two baths in a rural environment.
Special paddling on the never-freezing creek that carries the excess water from Lake Hévíz into the Zala river. Boarding the water in the steam ...
It is worth occasionally leaving the Balaton bike circuit for a little extra adventure: the Keszthely Hills offer many smaller and larger ...
We hike in the hills of Transdanubia but still in a hilly region in this section of the National Blue Trail. Small and large, sometimes tiring ...
On this section of the National Blue Trail, we walk on the slopes of the Keszthely Mountains. Most of the route passes through populated areas and ...
Bike route connecting Kehidakustány and Hévíz. During a thermal route, we can cycle between two baths in a rural environment.
The bike route connecting Lake Hévíz and the Zalakaros spa. During a thermal route, you can cycle between two spas in a rural setting.

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