The Chios Health Athletes Association "Chiosrunning" in co-organization with the Municipality of Chios, the Regional Unit of Chios and the Cultural Association of Karyes announces a trail running race and parallel sports and cultural activities, under the name "Chios Hardstone Trail" for the routes of 5km, 12km, 23km and 41km which will take place on 27/4/2025, in the mountain village of Karyes of Chios.

Athletes who participate in the 23km and 41km races will have their scores recorded in the UTMB Index system - ITRA and Olympus Marathon.