If it's a guest facing role then let your personality shine through, have a laugh with the interviewer. It's a holiday park so they want to see that you you have a likeable personality with the potential to build great relationships with the guests. Also speak positively, Haven have a big culture about positively re-phrasing sentences. For example talk about what you can do rather than what you can't do, and talk about what you enjoy rather than what you don't enjoy.
Wear smart casual and take all Red , license.
Smile and tell them what a wonderful company they are
Be out going and try and be yourself
Not worth the effort