Jizerska 50, traditional cross-country skiing event in the heart of Czech Republic which is takes place near the capital city of Prague, has a cheaper starting fee till the end of December. Take part in the legendary race in the beautiful countryside in the Jizera Mountains. But hurry up, the last hundereds of starting numbers remain. Registration can be made at https://jiz50.cz/en/, where you also find information on accommodation and transportation.