Lugers from around the world have travelled to Pyeongchang to test the sliding track which will be used at the 2018 Winter Olympics.
Delegations have today arrived at the Alpensia Sliding Centre for the preliminary homologation of the South Korean course, with International Luge Federation (FIL) vice presidents Claire DelNegro and Einars Fogelis also present.
The FIL has invited lugers of different standards to join in with Germany's triple Olympic champion Felix Loch, the winner of this year's World Championships and World Cup, among the male sliders.
The 26-year-old, who boasts 12 World Championship gold medals in all, will be joined by American Chris Mazdzer, Romania's Valentin Cretu and Italy's Dominik Fischnaller.
Female sliders include Russia's Tatiana Ivanova, a mixed team silver medallist at the Sochi 2014 Olympics.
Canada's Alex Gough, Gry Martine Mostue of Norway and Ukraine's Olena Steskiv will also be part of the testing.
Doubles pairings will have the chance to try the course, too, with Austria's Peter Penz and Georg Fischler, who were third in the World Cup this season, the stand-out duo.
Fellow Austrians Andris Sic and Juris Sics will also be involved, alongside Jakub Simonak and Marek Solcansky of Slovakia and Czech pair Lukas Broz and Antonin Broz.
Trial runs will be carried out until March 8, with lugers from hosts South Korea also involved.
The Alpensia Sliding Centre will have a capacity of 7,000, with 1,000 seats.
Test events are due to be held there in 2017.