How do I convince my parents to let me travel with a friend out of the country?

All you can do is keep asking. But if they don't think these other parents are up to the task there's probably nothing you can do to change their minds.

I never been to the Bahamas. I might buy my own boat, so maybe I will go. I might travel to other places also. Well I don't yet where I want to go first.

My parents don't care if I travel alone, and they don't care if I leave the country.

You can't

You are a child so you can not board a flight and there's o way your paretns should ever allow you to leave the country like that

Watch the movie Taken and Taken 2 and see for yourself what could happen.

Good luck! I was never able to convince my folks of anything like that.

The right way for this to have possibly worked is if her parents had contacted your parents FIRST, before she invited you, and the set of parents talked about it. And maybe that did happen. Either way, I doubt you're taking the trip.

you could try inviting one of your parents to go with you, if they know they can keep an eye on you they rnight be rnore willing to let you go

Did your friend's parents even call your Mom or Dad to invite you themselves? Maybe they need to?

I doubt many parents would allow this, and there's several reasons for that. One of the biggest has to do with Bahamas being a foreign country. If your parents are worried hers won't pay attention, this sets up a scary movie script! Seriously, I've been to the Bahamas and it's pretty and it's fun. But it's very much a foreign country.

There might be other reasons, too. For example, her parents shouldn't have let her ask you if you want to go. Better parents would call YOUR parents to discuss it. This puts your parents in the position of being "the bad guy" and that's not fair to them.

Money is another issue. I assume your parents would pay, but maybe they're having some problems with finances right now. And if the other parents offered to pay, I can promise your parents don't want that. It makes them indebted to those other parents, who don't sound all that smart.

Your best bet is to accept this in a mature way and tell them you understand their reasoning. This proves you're growing up, and maybe the next time you get invited to something, they're more likely to let you go. (I'm not necessarily talking about a major trip. It could be a concert, a weekend visit to a nearby attraction, etc).

You probably can't.

Only possibility would be a third person to accompany you and your friend who your parents trust and her parents trust and I doubt whether thats feasible.

For the future you need to be very responsible so your parents can feel they can trust you more