Take it with you. So long as you tell the hotel "I've got a guitar, do you have any rules about it?" then you should be OK. Most won't mind so long as you don't keep playing late at night - if you regularly serenade the guests at 2am or 6am though then your axe may meet another type of axe... :-) Singing loud may be a problem though, but just quiet strumming should be fine.

Graham.