Once they arrived we left right away down the road towards Argentina until the GPS told me to take a left when there was no road. We continued for almost 15 km until we asked and realized we were going the wrong way. We turned around and started to look for the right road until we asked a guy coming off a gravel road who said that it was the way to Argentina. We rode on gravel for 5 km and asked again, a nice woman explained that the gravel road would take us to Argentina but it wan't the best way. She mentioned another road further back but warned us that it might be closed due to the race.
We decided to go back crossing the 5 km of gravel again and about another 5 km of tarmac until we reached the turn off and found that it was closed since the race already started and will not be open until 4 pm. So we decided to go back to the gavel road and take our chances which tuned out great especially since the road went past many farms and the country side until we reached the road and then found new gravel until the border.
The border was fairly easy and we continued down route 234 to San Martin where we had booked a nice hostel in the middle of town and then went to explore the town with lunch at a very nice restaurant. and found a cafe for tomorrow's coffee time.