Drive along the Võru-Valga highway from Saru to Kuutsi-Tiitsa-Karisöödi-Ura-Naha (about 14 km). The trail is about 4.8 km long and it takes a couple of hours to walk it through. The trail starts under the oak-tree with a perimeter of about 4 metres in Naha farm and runs very close to the state border, so make sure you take your ID with you.
Interesting to know: you cannot put your foot down on the southernmost point, as the geographically correct southernmost point of Estonia is situated about 5 steps away from the marked spot, just in the middle of the Peetri River.