HomeEastern Trail Series Eastern Trail Series 2023 Indian oil Eastern trail series introduces 3 types of trails :Muddy island (River Island run)Taste of hills (hill run)Happy forest (forest run) Eastern Trail Series- Happy Forest2023 races 25km and 50km are the qualifying for Ultribe Paderu23 races. ETS RaceUltribe Race25km25km50km50km, 80km