Something outdoors for HS grad?

<p>My daughter will graduate HS this spring, took all her senior year classes at a community college, will still be 17 in summer. She went on a hostelling program bike trip for a month last summer, would love to do another one, and got a generous windfall from grandma so she could pay for it herself. I don't think she should immerse herself in a group of high school kids again at this point (they'll likely all be younger and she might be 3 yrs ahead of some in school) and she sees my point. Does anyone know of something that combines outdoors, travel, people around her age? Physically strenuous is good and primitive is okay (she was happy sleeping on the ground for the month).
Orkney is online now</p>