Mayor of Luxembourg City Lydie Polfer addresses the press and guests at the official re-opening of the mini-golf course in the Pétrusse valley in Luxembourg City; Credit: Steven Miller, Chronicle.lu

On the morning of Tuesday 4 August 2026, the College of Aldermen and Mayors of the City of Luxembourg held a ceremony to mark the reopening of the mini-golf course in the Pétrusse valley.

Those in attendance included Mayor of Luxembourg City Lydie Polfer, Alderman of Luxembourg City Patrick Goldschmidt, LUGA General Coordinator Ann Muller and former UNESCO Site Manager at the Ministry of Culture of the Grand Duchy of Luxembourg, Robert L. Philippart.

The course is located next to the kiosk at the Grund end of the Pétrusse valley and was originally due to re-open after the refurbishments in May 2025, but due to safety issues with the neighbouring rockface the City of Luxembourg (VdL) was forced to delay the opening to ensure that the appropriate safety work could be undertaken.

According to the VdL, its parks, sports, forests and urban planning departments collaborated with state services, including the Roads and Bridges Administration, owner of the cliffs in the Pétrusse Valley, to secure the site in preparation for its opening to the public. As the cliffs are part of a UNESCO World Heritage Site, the planned safety work required several studies to identify a solution that would guarantee both user safety and the preservation of the listed heritage.

The main redevelopment of the facility cost approximately €85,000 with the additional safety measures costing approximately €76,000. These included the installation of safety fencing, anchor cables and an energy-absorbing layer of sand running along the base of the cliff to deaden the impact of any falling rocks.

The VdL confirmed that a second phase of safety work will commence in 2027, with a view to integrating an additional track into the course. This work will include the installation of lightweight netting along the cliff crest and the targeted securing of two critical areas with anchor bolts and taut netting.

At present, the course consists of twelve playable holes and additional holes will be accessible in the near future following the completion of the required safety works.

During her speech, Mayor Polfer remarked on the work undertaken to ensure the safety of the surrounding area and praised the work undertaken to guarantee the changes were in line with the area’s UNESCO heritage requirements. She offered “a very big thank you” to all those involved in the redevelopment of the course and the “unanimous support to make this possible”.

The minigolf course is open Sunday to Thursday between the hours of 11:00 and 20:00, and on Fridays and Saturdays between the hours of 11:00 and 22:00.

Sessions can be booked online at minigolf.lu. Tickets for adults cost €5 and €3 for children between the ages of four and twelve.