The Vooremäe Health Trails make for a fun destination trail run. This sports complex, located 20 km south of the center of Tartu, features several km of rolling hill trails of various surface and level of difficulty. In summer, the area is popular for walking, hiking, trail running, & mountain biking. In winter, it’s popular for snow sports. The trails are mainly wooded. There are several trail loop options, including 3k, 4k, & 8k tracks. This site has good information on the trails, and a map of the loop options.