Cruise ships are absolutely not claustrophobic. For those who have never been on one, even the smallest ships are so much bigger than you could ever imagine. We have had quite a few cruise holidays and if they were remotely claustrophobic, I would have only had one!
They are the are the most fabulous holidays. You wake up to a new view practically every morning with somewhere different to explore.
However, a year or more away from home sailing round the world is a step too far for me.
Most world cruises sailing from Southampton leave in early January and get back early April.
Over the years we have met quite a few folk who have had several of those. Expensive yes, but when you consider the saving on heating at home in the winter as well as no food to buy, plus the opportunity to effortlessly see the world from the comfort of a luxury floating hotel, I can see the appeal.