A cable car goes from Alaverdi up the steep mountain to Sanahin. It goes from behind the post office, just north of the city centre and bus station. Buses coming from Vandazor stops at the cable car stop.
The cable car is not running all day. It is a convenient and fast way to get to Sanahin and if you miss the cable car you will have a long walk ahead of you or you will have to look for a bus going up to Sanahin (don’t think they are too frequent). When I was in Alaverdi, in June 2003, it was running as follow:
07.15 - 09.45
11.00 - 14.00
15.00 - 19.30
23.15 - 23.45
00.15 - 00.45
It is very cheap. One way costs 50 drams.