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Hamm (Sieg)

Forest swimming pool Thalhauser Mühle

Current information

Update Thalhausermühle Forest Pool (03.07.25): From July 10: Free entrance, open from 11 AM to 7 PM

After construction work in the pool area, nothing stands in the way of leisure and children's swimming fun. Splashing around at the water playground, climbing adventures on the play ship, a round of beach volleyball or a soccer tournament while enjoying a cold drink or ice cream… despite the still closed main swimming area, all of this will be possible again starting next week at the popular natural pool in Hamm (Sieg). 

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OPENING 2025 POSTPONED

An unexpected leak has unfortunately prevented the scheduled opening of our forest pool.

It is now official: The forest pool must be emptied, so regular bathing operations will not be possible this year.
We are currently working on a solution so that the pool can hopefully be used again as a leisure facility for children and families by early July.

Brief description

Natural splashing in the largest natural swimming pool in the region



Detailed description

Thalhausermühle Forest Swimming Pool - Naturally Splashing

The outdoor and forest swimming pool "Thalhausermühle" is the largest natural outdoor pool in the Westerwald region, featuring a water area of 16,000 square meters and sunbathing lawns of 15,000 square meters.

The vast water surface and nearly as many expansive and well-maintained sunbathing areas in the midst of the forest invite you to linger. Chemicals of any kind have no "access" to the body of water. Nature is responsible for water quality, as the largest natural swimming pool in the region is supplied with water from the Seelbach stream and the Marienthaler tunnel. "Pure nature" in every respect. It's no wonder that fish feel right at home in this natural swimming pool. The water quality is regularly checked by the state environmental agency. The swimming pool is divided into a swimmer and a non-swimmer area. The maximum water depth is four meters. A kiosk complements the offerings at the forest swimming pool.
New in 2024: with a beach volleyball court and an adventure water playground

Adventurous individuals will also find plenty to enjoy here: How about a jump from 1 or 3 meters high from the diving tower? Or would you like to climb up to 7 meters on the water climbing wall? The giant slide also promises a lot of fun! 

Please check the current opening hours!

Price information

(Update Waldschwimmbad Thalhausermühle (03.07.25)
Due to construction measures: Free entry, open from 11 am to 7 pm

The entry is free for all guests this year, the entire area is open – weather permitting – from Thursday, July 10, 2025, from Monday to Sunday, always between 11 am and 7 pm. The swimming pool kiosk offers cold drinks and also invites the older guests to meet and linger in a beer garden atmosphere.

The large (main) swimming area unfortunately cannot be opened from July 10.

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Regular prices

  • Children up to 6 years: Free entry
  • Day tickets

    • Adults: €4.00, after 5 pm: €3.00
    • Minors: €2.50, after 5 pm: €2.00
    • Severely disabled: €2.50, after 5 pm: €2.00
    • Person with volunteer card: €2.00

    Multiple tickets

    • 10-ticket card adults: €32.00
    • 10-ticket card minors: €20.00
    • 10-ticket card severely disabled: €20.00
    • Annual card: €50.00

    Sales exclusively on site! Cash only, no card payment!

Contact and directions

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Thalhauser Mühle
57577 Hamm (Sieg)