Hi, I've had similar problems with me ex in the past, every few months we have an argument on whether it's too soon or not to take our little one away abroad. He also took our little boy on a camping holiday with his new partner who he's only been seeing a couple of weeks! I was hurt and worried and protective at the time and we had a huge argument about it, the main issue being that we had agreed previously if either of us got a new partner we would wait a respectable amount of time before introducing them to our boy, imo a few weeks is certainly not enough time to know some one before taking them away with your young child in a confined space!
Anyway that's all irrelevant really other than to say I definitely sympathise with you and actually put a couple of posts on here about the same thing, and I will tell you what I learnt,
Firstly apparently legally they have every right to take your child out of the country and if you stand in their way without good reason and they take you to court over it in all likely hood they will win! Shocking I know!
Secondly I found people far from sympathetic when I mentioned it on here, I thought it was a perfectly reasonable thing to be worried about But most posters were quite mean about my feelings and a few even suggested I needed to get help because I was obviously suffering with some mental problems!! 😱 To me it a perfectly sane reaction to the thought of you child/ren being thousands of miles away from you in a different country, especially in the current climate!
All I can say to help is the only way I have managed to prevent this so far is by appealing to my exes reasonable side (not one he shows very often!) and explaining that I would never do something with our child that made him uncomfortable regardless of whether I thought it was ok or not, and I have promised him that I will seriously think about it and talk properly when our boy is older (I've said at the very least he should be capable of asking for help/identify someone who can help him if he is lost or something happens to my ex/be able to swim etc etc)
I really feel for you not having control of what or where your child goes is an awful feeling x
(I'd just like to point out before anyone is offended by the fact that I feel I should have more say in my child that my partner, that is not the case, because my ex partner is off work currently we are nearly 50/50 and he's a great dad, the issue I have is I genuinely wouldn't do anything with our boy that he felt so strongly about, and I just feel he should afford me the same respect! Holidays are great yes but they are not an essential part of life, I never went aboard until my teens and I don't think it had any adverse effect on me, and especially at the moment when our boy is too young to even remember it, I think it's something that should be done when all involved are comfortable and can get the most out of it!)