For a short while, craters with a diameter of more than two metres appeared in the ground around the Ke Kateřinkám Primary School. What happened? The trees chosen by the Environmental Department of the Municipality of Prague 11 were replanted. AR delta hired Covenant, which specialises in this unusual work, and as part of the preparations to the land for the construction of the ALS, three fully grown linden trees were relocated. In parallel with these purely technical activities, meetings of specialists in individual building professions are also in progress. The Chief Project Engineer is coordinating these specialists. In spite of the approaching Christmas season, this project, which will in a year and a half offer thousands of citizens new access to winter sports, is not slowing down, not even for an instant. Quite to the contrary