We generally avoid trading while traveling, the more you travel, the more your body is at risk, you will get sick, otherwise you will be able to make the right decision at the right time. Your brain can take different actions while traveling, many times you will face wrong decisions and you can also face huge losses.
Maybe you need to confirm pre-orders while traveling or you should refrain from trading while traveling.
I also dont recommend it. During traveling you will be trying to stay away from regular stuff taking time off and that means no trading.
However people will have different opinions about this. Some think that missing opportunities is not good and hence they will let their anxiety run checking on prices and doing it all the time.
Dont forget that vacation means you have made some money that you can spend, that break is deserved before you get back in the game.