I agree with what you are saying that she would have struggled to get to her location, but just playing devils advocate- on the same score she sat for a 19 hour flight which none of them slept through and then managed to sit for an hour and a half in a taxi to the resort before going swimming in a 30 minute walk, and then swimming again- even if you allow for some napping- there is some stamina there, yes she was with other people- but she still managed all that. She also managed her duke of Edinburgh hikes, accompanied by 1 adult to three children and sleeping on the floor in a tent for two nights. It is really improbable she reached that destination on her own, but not 100%. impossible.