The granite area is located at the Pivdennyi Buh river near Pivdennoukrainsk. There are lots of easier routes which makes it perfect for climbing with kids. It's sunny during the day, so you can climb untill 12 am or in the late afternoon in summer.
It's a perfect place to stay with a tent during summer. There is a water sourse. Supermarkets are pretty far away, it takes about an hour to get there by foot.