As an expat, I always had visitors from abroad, interested in visiting the city or coleagues wondering what to do over the week-end.
One thing that helped me a lot lately is a travel company run by Mr. Dragos. He owns few Mercedes vans and regular cars. His drivers are qualified and certified guides, fluent in the major languages, some speaking even hebrew and japonese. Moreover, his drivers are young and easy-going folks.
I used his services few times now, being very happy with the service and the value for money. I think you might be interested, too, either for a one day trip to the mountains or for a longer trip with your friends.
You can reach Mr. Dragos at Protected content , or through FB: Protected content