If you decide to spend two days in Zelve, I suggest you spend the first in the valleys and the second exploring the ancient town of Zelve and its open air museum.
To reach the valleys, I started out on my walk from the town of Ortahisar and finished three hours later in Çavuşir, a small village that's home to an old mill. As it gets really hot during the summer in Cappadoce, it's pleasant to walk under the shady trees and stop off at chapels along the way. I remember that the apricots and plums we picked straight from trees were delicious and juicy!
The ancient town of Zelve is small and beginning to crumble. I loved exploring its churches and houses where the earliest Christians once lived. Some dovecotes are still in use and if you clap your hands, you'll see all pigeons fly off! When you're ready for a break, try some gözleme - a pastry that's stuffed with cheese, potato or mincemeat - washed down with some ayran, a yoghurt-based drink.
I ended my tour of Zelve with a visit to the open air museum , where you'll find religious drawings, churches and fairy chimneys.