The Ubersitz is a traditional custom in Hasli, Bernese Oberland, Switzerland.
On Christmas day, at nightfall, schoolboys begin with Treichlen, walking through the villages in small troops, sounding giant cow-bells.
The Trychling culminates on 30 December (or the last workday before that date), with the Ubersitz in Meiringen.
The group of Willigen is accompanied by a "Huttefroueli" as well as a "Schnabelgeiss" (a tall monster with goat's horns and a beak).
However, the Treichel group of Unterbach comes to Meiringen every day of the "Altjahrswoche" including the Ubersitz.
They wear masks made only out of natural components such as wood, plants or animal furs.
The Treichel group of Innertkirchen only comes to Meiringen at the Morning after the Ubersitz's night.