If you are lucky enough to go on an Alaskan cruise (my favourite by the way) You might inadvertidly come accross some of the fabulous wildlife the region has to offer. Some cruiselines have nature advisors on board who will alert you, over the tannoy as to what they have seen. This might be the spectacular of whales swimming and performing in front of the ship (they do like to swim close to the ship) or stunning birds of prey and even Bears. So keep a keen ear open and an eye on the water.