You could make yourself crazy trying to control what other people do Aeo. I only say that because I try to do the same myself
Only one person I know has limited their alcohol intake around me and I nearly cried I was so happy. It was a very sweet thing to do. But then that person has set the bar too high and now I'm p;issed that no one else does the same. When family visited my stepdad was drinking beer in my house and it was the first time anyone had drank there since I quit and it drove me crazy. My family in no way show any consideration to the fact that I might find it hard to be around alcohol. But then they actually just don't get it.
Just make sure that your vacation is in no way centered around alcohol. Plan lots of sober activities. You are well within your rights to say you don't want to go to any bars. If your husband wants to drink then you are entitled to do whatever you want too.
Sorry...I'm getting indignant on your behalf x