I’d go on an expedition. Himalayas in April or November. Alaska in the Arctic summer. Or South America in their summer. In 2016, I had a month long sabbatical and spent it in Nepal, which was worth every minute.
I’m not the parent commenter but I recently spent almost a month in Nepal. Most of it was trekking in the Annapurna region. There are “teahouses” along all the trekking routes (some areas have more than others), which are mostly very basic but very cheap. I wasn’t alone but I met many people who were. It’s easy to befriend other people on the same route and stick together for awhile.
Aside from trekking I spent a few days in Pokhara and Kathmandu (Thamel), but much preferred the mountains to the cities.