Poplar forest season is really worthwhile, but the net red train is too long, and people must stand in front of the counter before the ticket is issued. You can take a ride on the outbound journey. It is recommended to walk back to the starting point for the return journey, otherwise waiting for the train for 40 minutes like me and then returning slowly on the original road will delay going to other observation decks. And the small train is not like the past is circular, so it is really the scenery inside, unless you walk along the tracks, about ten kilometers, there is no signal in the middle of the no-man's area, I did not dare to try. In fact, other observation decks can see the scenery of Populus euphratica forest everywhere, as long as you go to the time is beautiful everywhere.