Looking for some recommendations....
We went to Namibia and Cape Town last October for 16 days, when the kids (teens) all had a 2-week October half-term. Hired a 4x4 with 2 roof tents in Namibia for a mix of wildlife and remote campsites. Then Cape Town for a few days at the end. It was awesome. No phones (no reception!), lots of time outdoors, animals, scenery and environment totally different to what the kids are used to etc.
It worked brilliantly - yes it was expensive but not nearly the prices some people talk about for non-Europe on here (flights London-Windhoek-Cape Town-London for the 5 of us were £3500, whole trip less around £7000 all included). I arranged it all myself but have been to both Namibia and CT before so had an idea where to go and how to organise - I can see organised self-drive tours come in at way more than this.
This was a long-planned special trip. We normally house swap or Airbnb or camp in Europe or the UK. If you were contemplating one-more-big-trip before the kids want to do their own thing, but hadn't got 10k+++ to spend, had 2-3 weeks and were probably constrained to school summer holidays.....what would you do and where would you go? I'd love to go to Costa Rica but don't think it is doable in budget. Youngest teen would love to go to Japan but same worry on £££. Would love to do India too but don't really know where to start for a relatively short time.