Starting point:
wien-lobAU National Park House.

The trail begins at the wien-lobAU National Park House, leading first to the so-called Dechantlacke, a popular old natural swimming area. Beavers have left gnaw marks in the vicinity of these deserted gravel pits, and turtles may be spotted in tranquil waters from April until far into the autumn months. Unfortunately, there are also many non-native species – especially yellow-bellied and red-eared sliders set free in the wild by their human owners – which threaten the native and very rare European Pond Turtle. 
The trail crosses a short stretch of xeric habitat which is covered in magnificent orchids in the spring, then continues on to the Josefsteg boardwalk spanning a backwater now overgrown with reeds. Sharp observers may spot the European Pond Turtle here, too, as well as giant carp. The trail then proceeds past meadows and along a stretch lined by chestnut trees until the Lobau Grundwasserwerk water works facility is reached, and from there across the fields to the Saltenstrasse entrance to the National Park.
At the edge of the forest is an observatory platform on the body of water known as "Tischwasser" where you may spot waterfowl. Return to the Josefsteg boardwalk across a stretch of dry habitat and from there back to the wien-lobAU National Park House.

Starting point:
Begin either at the Uferhaus in Gross-Enzersdorf, at the Kasernbrückerl bridge, or at the Panozzalacke.
 

From the Uferhaus in Gross-Enzersdorf, the trail first leads across former islands which can still be recognized as such thanks to the entrenchments which are still visible. The expansive ash forests are now quite arid. From the Kasernbrückerl bridge the trail turns westwards, passing Napoleon's powder magazine, then the French cemetery, both hidden by thick riparian woods. The trail then leads past the forester's lodge at the barbican, then meanders through expansive meadows. Be on the lookout for deer, rabbits and even raptors on the hunt during winter months.
Continue along the Napoleonstrasse to the southernmost boundary of the Lobau. Near the Panozzalacke and the large fuel depot, there are two additional Napoleonic monuments before the path reaches the composting facility and again joins up with the circular trail. This section of the trail is quite isolated, running along expansive meadows, fallow fields, densely-wooded areas and small bodies of water on the way back to Gross-Enzersdorf.