In Hardegg, visitors can walk directly from the Austrian part over the Thaya bridge, which forms the state border, into the Czech National Park or go by bike.
After the national park was created in the Czech Republic in 1991, it was already decided in 1992 in Austria to match the protection status on its side of the border.
In the herb layer grow the Turkish union, daphne, wood sorrel, onion-tooth root, Single-flowered pearl grass, and as a specialty the white forest bird.
Especially in the eastern part of the area, oak and hornbeam forests can be found on the south-facing slopes, which are very dry and warm due to solar radiation.
Numerous rare animal and plant species were able to defend their habitat in the Thayatal: otters, dice snakes, crested newts and white-tailed eagles as winter guests benefit from the intact river ecosystem.
The dry grassland and rocky sites are also an important habitat for endangered species such as the eastern green lizard, smooth snake, eagle owl and common raven.