This app shows the fullness of the Cyprus Dams using open data on a map with pies.
Website: https://cyprusdams.github.io/
For more information about the Cyprus Dams, you can find at Water Development Department.
http://www.moa.gov.cy/moa/wdd/wdd.nsf/page18_gr/page18_gr?opendocument
https://play.google.com/store/apps/details?id=com.cyprusdams.cyprusdams