the hardest part for me while on vacation was planning the meals. My family likes to cook absolutely everything with carbs. My grandma, for example, does some breaded steak chops and we all know how persistent grandmas are about you eating your whole lunch hah.  So plan it out ahead of time. You can still do a calisthenics routine if you don't have access to a gym. I'm sure you can find some good routines at bodybuilding.com . Also, you can get some resistance bands and a copy of P90X or some of those home based workouts. It is obviously not the same as a GYM but it's better than nothing.Enjoy your vacation.

… or weirdo. 😀

"Excuse me, can I borrow your children?"

I personally like to train on vacation as well, however, since you are not training on vacation, as well as eating more than normal, you can take advantage of this and use it to your benefit.The week before vacation, go ULC and jack up your training volume and, if you can, your intensity.  Volume is easy to add, just add a set for each exercise.  For strength work, you can add intensity by just adding weight.  So if you normally do 5x5 with 75%, you can do 5x5 with 80%.If you strictly do bodybuilding work, you probably won't be able to increase intensity via just adding weight, but you can do stuff like rest pauses and forced reps.  Probably adding one or two of those per session would be good.Doing this will result in overreaching (overtraining on purpose).  You will feel like crap that week, but since you are not training for two weeks after, your body will recover and the extra calories will be used to fuel that recovery and less likely to be stored as fat.