The ExtraRoute D connects the Mullerthal Region with the Grünewald near the capital, where it links to a wider network of hiking trails. The route starts at the beautiful castle in the cobblestone streets of the small town of Bourglinster. From there, it passes through Altlinster and Schleifmillen, leading by the rock formations of the prehistoric cult site Häerdcheslay. Through a beautiful mixed forest and past a forest pond, the route continues via Blumenthal (connection to Mullerthal Trail Route 3) to Junglinster. After 18.5 km, hikers have the option of taking a shortcut directly back to Bourglinster. From Junglinster, the route follows beautiful forest paths to the "Grand Ducal Enclosure", a 500-hectare private nature reserve of the Grand Ducal family that has been open to the public since 2009. Possible starting points: Junglinster: Church Bourglinster: Castle Blumenthal: Center

From the Bourglinster pavilion, this short circular route leads to the Bambësch forest, which borders the village to the south. Here it reaches various viewpoints of the castle and the village and then passes the Celtic refuge castle Beddelsteen. Over the extensive sandstone plateau Eechhëlz, it goes via the Rennpad and the Schenert forest with the Mouk viewpoint down to the village of Bourglinster. Afterwards, the path leads past the impressive castle back to the starting point.

The hiking trail Kampéngchen takes you from from Bourglinster to Imbringen and Eisenborn-Déiwendall. After that you pass through the forest Kampéngchen and after that over the plateau. The trail runs back to the starting point on natural paths and through rustic, seldomly managed forest.