Diversnight is an international night dive. It takes place the first Saturday of november every year.
The clue is to have as many divers as possible under water at the time that matches the year (i.e. 20:17 in 2017). It all started in Norway in 2005, and has expanded to 23 countries. We went to Dirdal to join Gjesdal Dykkeklubb on their event.