Hi NKA, 
I have seen that you created a relation  https://www.openstreetmap.org/relation/18208522 for Hardangerfjorden which contains smaller fjords forming the largen one, but per https://wiki.openstreetmap.org/wiki/Tag:bay=fjord this should not be done on a relation. It should either be a new way or a polygon. What is your opinion? Should be done with another way?