Get in
Marshutnis depart from Yerevan a few times a day. Taxis are an alternative option, at 100drams (.33 US$/km). If you are in Southern Armenia wanting to get to Lake Sevan, you should take the shortcut from Yeghegnadzor to Martuni - saving yourself a huge and unnecessary loop via Yerevan.
Get around
In town, walking and taxis are the way to go.
See
There is a nice church in the center of the city. In the hills, there are a couple of chapels and fun khachkars by Ayrk.
Makenyats Monastery. A medium sized monastery by the river in Makenis village, west of Vardenis. Recently saw some renovation work.
Vanevan Monastery. A small monastery that has been restored recently by the river in a village of the same name, west of Vardenis. There are some small caves above it.
Do
Hike, camp, swim.
Buy
Eat
Drink
Sleep
There are small hotels in Vardenis and the surrounding area. Many locals would also welcome you into their homes if you talked to them.
Contact
Get out
Vardenis is the last city on this road, so you have the same options of getting back, as you did getting in. There is a mountain road leading to Northern Karabakh as well, for those who have Armenian passports.