At the end of sunset is what is sometimes referred to as the blue hour . This gives a overly blue cast to the image and coupled with a long exposure can produce some really fun effects .

This is looking from Sulphur point in the Tauranga harbour towards the entrance beside the Mount . Part of the Port of Tauranga can be seen on the left and also the Matakana Island barge tied up also .

Definitely  a mood going on .

3895blue sulphur point web by M Handley.

Blue hour at sulphur point .