I have v v fine wavey hair, i am thinking of having curley extentions will this damage my fine hair?

I had extensions years ago, when it was a glue gun used to secure hair! my hair was ruined and took a long time to get back to normal../but I'm going away and want a hassle free hair holiday with hair I don't have to do much with...my apprehension is of ruining my hair...please help you knowledgable lot