Sofia,Bulgaria to Heidelberg,Germany
It is getting a little cold. I need to ride from Sofia to Heidelberg this week. There are some forecasts for light snow on the route from Bulgaria, Serbia, Croatia, Slovenia, Austria, but most days partly sunny to rain, with flurries.
Any thoughts on best route to avoid high passes and worst conditions. I need to be in Germany by 4 November. Not looking for scenic routes, just safest.