トゥルンの天然記念物・トップ20

ニーダーエスターライヒ州トライズマウアーにあるトライズ川の河口は、技術と自然がどのようにうまく調和できるかを示す魅力的な例です。ここではトライズ川がドナウ川に合流しますが、かつては今日ほど牧歌的ではありませんでした。元々、トライズ川は約7.5キロメートル上流で合流していました。1970年代にドナウ川のアルテンヴェルト水力発電所が建設されたことで、すべてが変わりました。発電所のためにドナウ川の水位が上昇したため、トライズ川は自然に流れ出ることができなくなりました。そのため、まったく新しい川床を掘削する必要がありました。

ここは、70以上のショウガーデンを備えたヨーロッパ初の環境ガーデンショーです。特に人気の高いツリートップウォークからは、トゥルナーフェルト（Tullnerfeld）の素晴らしい景色を眺めることができます。

Idyllic place and lovely time

The Greifenstein fish ladder is an ecological structure on the Danube in Lower Austria that restores more space for natural fish migration. It was built as part of the ecological restoration of the Greifenstein Danube power plant and allows fish to overcome the sections of the river separated by the power plant. The structure consists of a long series of pools that gradually equalize the difference in elevation between the upstream and downstream water. This allows numerous fish species – including huchen, barbel, and nase – to migrate through the Danube again in a natural way. The fish ladder is located directly on the Danube Cycle Path and can be reached via a short detour. From there, visitors can gain an interesting insight into the connection between energy production and nature conservation; information panels explain its operation and the migrating fish species. The structure is considered a successful example of ecological river restoration on the Austrian Danube.

Entertainment for the family 😄

The LIFE+ Traisen project was one of the largest renaturation projects in Austria and was implemented between 2009 and 2019. The aim was to transform the previously straightened lower reaches of the Traisen into a near-natural floodplain landscape. This resulted in a new, meandering river course with diverse bank structures and wetlands over a length of around 9.4 kilometers. This created valuable habitats for numerous animal and plant species, including endangered species. The implementation required extensive earthworks, in which large quantities of gravel and sediment were moved to create still waters and shallow water zones. The cost of the project was around 30 million euros and was financed by various public and private partners.

The city is a paradise for cyclists, with well-developed paths leading through green oases and along the Danube. In Tulln, trees are the focus of a unique initiative that highlights their beauty, importance and ecological functions. On this section you will find signposted trees with exciting information. The garden city creates a harmonious interplay of sustainability, nature and culture. With its focus on trees as "living works of art" and its bike-friendliness, Tulln is an ideal place for nature lovers and cyclists. Good thing!

Interesting rock in very stony terrain, therefore less suitable for small children.