How many types of blue exist?

Hello all,POS: 64*42,5 S 063*01,4 WCOG: 210SOG: 5.2WND: ENE 6-7 bftA day full of icebergs, glaciers and wildlife. Although the weather is not fantastic, still a lot of rain, the scenery stays beautiful in all it's forms. Sometimes I wonder how many types of blue do exist.We sailed at 7 through Graham passage, visited the wreck of the Gouvernouren, sailed through Willemina bay, landed at Orne Harbour and climbed up to enjoy the view over Gerlache strait, saw Orca's (!!!), saw Humback whales and landed in the evening on Cuverville island. By now everybody went to bed...understandable after such a full day of impressions. During the night we are heading slowly towards Lemaire channel. Tomorrow we'll start our visit on the South side.Groetjes, Janke