I'm going on a cruise to Alaska on July 29th till August 8th. I checked the temperature in Alaska online but I'm not sure if it will be around 7 to 23 degrees? I am confused. I'm probably going to see the ice berg like my dad said. So... What should I bring with me? I'm making a stop to Vancouver so I would need some summer clothes. Should bring sweaters too? I don't know if it will be cold in Alaska.