Concerns about crowds and limited personal space
Health concerns, sea/motion sickness
Not interested in the destinations offered
Lack of information – I don't have enough information about cruise vacations or cruise lines
Lack of companion – I don't have someone to go on a cruise vacation with me
Concerns over environmental impact
Negative past experiences
Not applicable - I'm not interested in a cruise vacation
Not applicable - I don't have any reasons that would keep me from considering a cruise vacation