Well it is possible depending on the country are you going to visit, if Bitcoin and other cryptocurrency is banned in a certain country then it is really impossible but if it accepted then you won't any have a problem our cashing it out.
Personally, I am not very fond of having a transaction in another person simply because I am the type of person who is cautious and doesn't want to make a deal in person.
We don't need to snip or tried to use bitcoin if ever that particular place/country had already banning crypto cause you'll might be in the hold and questioned by the authorities once caught. And might worse thing to happen if they will confiscate all your holdings and send you back home.
It is better to cash out first before we visit other countries for the our safety benefits.