Pont Adolphe, a prominent landmark in Luxembourg City, is a large stone arch bridge offering stunning views of the Pétrusse valley. It's generally accessible to pedestrians and cyclists, with dedicated walkways. While exploring independently is easy, guided city tours often include the bridge as a highlight. The bridge is open year-round, but winter conditions may require caution. Visiting the bridge is free, but guided tours or nearby attractions have associated costs. A typical visit to simply admire and cross the bridge usually takes about 30-60 minutes. Be aware of moderate slopes and stairs when accessing the lower park areas.