Crazy and long day. 15hrs. Cool seeing the city lights and sunrise. Got a little off trail (too far to the west) and had to abseil down a cliffband which was fun. @ the refuge around 430am. The numerous false summits and loss/gain of altitude on the way up were pretty frustrating, led mostly by me not having done enough prep beforehand, and not getting a wink of sleep the night before. great fun crossing the glacier though. Made it to the true summit around 9am (current tracks on here don't go to the true summit, but my GPS only logged my descent). Amazing views of Popo. the trek back felt like an absolute eternity. was glad to get off that trail.