Annual cross-country skiing competition in Estonia
Tartu Ski Marathon (Estonian: Tartu maraton) is a long-distance cross-country skiing competition, held annually in Estonia, on third Sunday of February. It debuted in 1960 and has been a part of Worldloppet since 1994. Initially, the track stretched from Tartu to Kääriku, partially on the Emajõgi river ice. For years the marathon's start was given in Matu (in Aakre) with the finish in Elva. Nowadays, the full 63 km marathon track stretches from Otepää to Elva.
https://en.wikipedia.org/wiki/Tartu_Maraton