Going on holibobs

I learned a new word today, "holibobs"!
Portion control is your friend. Eat about half of what is served, split dishes when possible. Use your clenched fist as a visual guide to a reasonable portion size for more proteins and carbs (meat, pasta, potatoes, etc.). Keep in mind that most restaurant meals have the same or more calories as most of us eat in a whole day! Limit bread, potatoes, pasta, booze, and dessert because this is where calories add up fast. I'm not saying don't eat these foods, but limit how much you eat. One roll, not three or four. One glass of wine, not a whole bottle, a small portion of pasta, not the whole plate. Eat lots of veggies, salad, fruit, and water.
You just need to estimate your quantity. Many restaurants are in the MFP database. If not, use an entry for a similar dish. Someone suggested to add 1/2 stick of butter to any restaurant meal, LOL! I don't do that, but they're probably right.
Take your usual snacks with you if you can and buy a few things at the grocery store when you get to your destination, if possible.
Have fun and don't get freaked out by the scale when you get home!

I typically enjoy myself on a vacation...that doesn't mean I go nuts with things, but vacations are for enjoyment, not stressing out. It's fairly easy to make reasonable choices for the most part and indulge a little here and there.

Frankly, I've never gained weight on a vacation other than airplane bloat...when I'm on vacation, I'm typically pretty active and out and about seeing the things that need to be seen.

I went to Colombia back in May...I inadvertently lost 3 Lbs on the trip despite enjoying the local fare (granted their portions are smaller than we are used to) and drinking copious amounts of beer and smoking cuban cigars.

ETA: when I'm on vacation, I also rarely snack which I do at home...and often only eat two meals...usually a late breakfast or early lunch and a nice dinner.

Try and find a real grocery store and pickup some healthy snacks. I now bring a lot of food with me that are staples so just dinner and the odd snack like chips or desert is outside the norm. It's quite hard to eat healthy on the road otherwise.

One tip that usually works for me: if you still have few days before you start your vacation, eat at a deficit until you leave and maybe knock down a lb. or two, or increase your workouts so you burn more calories.

Have fun with your daughter and consider the logging break as a teaching tool to see how much did you learn about portion control. And of course, try to walk as much as possible unless you can occasionally use the gym at the hotel.