Day 1 — Luxembourg City: Grund, the Alzette, and the Bock Casemates
🚶 Start getting to know the city by diving into the valleys of the Alzette and Pétrusse rivers—go down in the Pfaffenthal glass elevator (views of the Passerelle viaduct and the city bastions), walk through the medieval Grund quarter with its whitewashed houses and terraces above the water. Next—enter the underground world of the Bock Casemates: corridors and embrasures inside the rock reveal cinematic views of the valley and the Clausen quarter. In the evening—stroll along the Pétrusse: slopes, the Adolphe Bridge, and the soft lighting on the walls make the walk very cinematic.