for Mount Emei, you need a bit of luck for good weather. I’ve been here twice, in April and in June 2019 both times at arrival the top was in the clouds. meaning that a view was off the table. the first time fortunatly we had some more time and spend the night in the top to see the sunrise. and this morning the view was amazing. I would recommend anyone to try it for a night and see how it is in the morning.