Cruise instead simply necessary, if you are lucky you will meet various water animals, seals have almost always, dolphin and puffin bit more rare to meet various waterfowl but always there.
It is advisable to dress well.
This cruise is definitely value for money. We were very well looked after both on board and when we did sightseeing tours. Our room was beautiful, the food great, staff friendly and helpful. No added costs. I would thoroughly recommend this your.