Climathon Pireus 2020 – Information is provided in greek in https://bankfin.unipi.gr/2020/11/30/16393/ and for English in https://www.dept.aueb.gr/el/deos/content/piraeus-climathon-2020-%C2%A011-%CE%B4%CE%B5%CE%BA%CE%B5%CE%BC%CE%B2%CF%81%CE%AF%CE%BF%CF%85-2020
Climathon Piraeus 2021 – https://climathon.climate-kic.org/europe/greece/pireas/?lang=en