Perhaps... but DC said himself that she couldn’t have fallen into water as the paths were wide UNLESS the locals are correct and the path to the refuge is dangerously slippy and she rolled down into the lake. OR she tried to collect water from the lake before entering the refuge and fell in. But that whole scenario is nixed by the fact her trail apparently halted at a specific spot and the dogs circled around unable to find a track. To me, this suggests she retraced her steps back down the mountain. Also, she hadn’t checked the winter room - before I go ANYWHERE, I book the accommodation options. I don’t think she ever planned going to the refuge... she went back up to the same place she’d been before to meet someone, as pre-arranged, to let them see for themselves what she’d been raving about the day before, went back down the mountain with them, left in a vehicle. Didn’t let on about any of it to social media users because nobody was supposed to be out of their home due to lockdown. My theory.