Hi there
I'm an international student in the UK so completely understand the desire for and importance of international exposure. I'm not sure how that would work at the school and college level in the UK but I can tell you about opportunities to go outside the UK if you go to university. My advice is a bit Durham-related but different unis will also have their own provisions so you can look into them when doing your own research.
1. Study abroad- This will essentially allow you to study in a country other than the UK for one year between the penultimate and final years of your undergrad. Most UK undergrad degrees are 3 years long but with a year abroad, you can make it a 4-year degree. However, you may not have this option for all courses so it's best to check the university's
website first or ask the admissions team. Here's a story of a Durham student who did a year abroad in Germany:
https://studentblog.webspace.durham.ac.uk/my-study-abroad-experience-in-germany/2. Research internships- Several of these exist mostly as a pact between universities and countries. This allows you to undertake a summer research internship in a university in another country. Some of these programmes are funded so you'll be reimbursed for all travel and visa expenses and may be provided a living expense (including accommodation) as well. For Durham, we have a dedicated team which looks after Global Opportunities and they're advertised on the
website. Some destinations I've heard of include Shanghai, Seoul, USA, Canada, Brazil, Vietnam. There are so many more opportunities and there's loads of more information but you'd need to be a Durham student to access that.
3. You can also undertake international volunteering and there will usually be university societies that have student-led volunteering projects. I'm not sure about the funding here but again loads of support and information is available from the careers service.
Here's a student perspective on Enactus- a volunteering project at Durham
4. Work abroad- You can work in one of the international destinations for a year if you opt for a placement year. This is just like study abroad, except you're working (not studying) and can also choose to work in the UK (which most placement students do). Almost all courses at Durham allow you to do a placement and this can be abroad. The good thing is that you get international exposure, work experience for your CV as well as get paid in the process so definitely a great option to explore. However, placements are competitive and you will have to find opportunities and apply for them although the careers service can offer some support.
Hope that helps, I know it wasn't directly related to your current situation but something to think about for the future
-Himieka