I recommend waiting until you get home for a few reasons.
When traveling it is not always easy to take or remember to take doses. Every dose is important and the timing of them is important.
Usually there are some die-off effects... like headaches, cramps, gas, bloating - and it would be more comfortable at home.
If you have never done this before, you aren't sure how it will affect you. Even if you have done this before, you can't be sure how your system will react this time.
Some people need to do enemas and take other measures if there is a problem when cleansing - easier to take care of at home.
You may be exposed to more parasites
in your travel.
I say to go and enjoy yourself, and do the cleasing when you get home.