Altitude meters: 3.800
Note: Due to unavoidable circumstances, the courses may be modified annually and, therefore, can be shorter or longer than the original. Especially the Istria155 can be affected by +/-9%. Nevertheless, the name of the courses “Istria155, Istria235 and Istria300” remain the same and will not be adapted annually to the current distance. The highest priority is to reach 300 Kilometers on the longest course.