it also depends on what kind of vacation it is and with whom. If you are traveling alone, then of course you can combine trading with traveling by setting aside time for it. But if you are traveling with friends, you will be spending a lot of time together, and in that case, you won’t be able to give trading proper attention, and the results will reflect that. These would be rushed trades, and in such a situation, I would rather avoid trading and fully enjoy the vacation.
I still disagree, traveling itself isn't smart when going somewhere and trading at the same time. Depends on the purpose of the traveling of course, but I would still say, first of all do not EVER trade while you are on the road, and after you reach, it depends on how long you are there.
If you travel to somewhere and have to stay there for three months, then yeah trade, but if we are talking about just 2 days, no need, just wait and do it better at your home comfort once again, those will yield better results because you are at home and you are used to trading there. Of course there are people who trade on their phones, and keep trading everywhere, but I never understood those people considering how tough it is to do something like that.