"If you are in education please state 'student' ".
What does "in education" mean? Including teachers? Janitors? Administrators? Or just students?

"If you have any further questions regarding the data collection, how it will be used or the final result then please contact me directly."

Nice, except you did not provide any contact information. Nor even your name or institution. Did you receive approval from your institutional authority governing research involving human subjects?

"...and where was your main destination?" What does that mean? Do you even understand that many cruises are round-trip affairs?

I have difficulty taking your survey seriously when it employs such poor grammar, such vague and ambiguous questions, and seems not to be logically constructed.

Good luck with your dissertation...