I am planning to visit Yerevan for 2 days (saturday and sunday). At this time, I am thinking to spend one day in Yerevan and to take a drive on 2nd day - visiting Nakhichivan (sentimental reasons, no more than 2 hours) and Sevan lake.
Judging by the map it seem to be easily possible to drive Yerevan-Nakhichivan-Sevan-Yerevan in a day - can anyone confirm it?

As such I am looking for an opportunity to rent a car with english speaking driver/guide for these 2 days - any recommendations?

Are Yerevan main attractions all located nearby and so they are walkable in a day (or a car is recommended)?

Last question - how long does it take to drive from downtown to the airport at night?

AX