FIL World Luge Natural Track Championships

The FIL World Luge Natural Track Championships, part of the International Luge Federation (FIL) have taken place on an almost biennial basis in non-Winter Olympics years since 1979. == Background == These championships are held for and upon naturbahn or natural tracks, runs packed with snow and ice but featuring no artificial banking or artificial refrigeration as would be found on artificial and refrigerated tracks used in the mainstream Luge competitions.

Source: Wikipedia — FIL World Luge Natural Track Championships (CC BY-SA 4.0)