===================================
The ticket price of Discovery Kingdom is 160 yuan, and it costs nothing. Get off at Dalian Railway Station, take the light rail and get off at Jinshitan (equivalent to sitting from one end to the other). After getting off the bus at Jinshitan, there is a bus for one yuan, and it takes less than ten minutes to get to the door of Discovery Kingdom. If you live, don't choose Golden Stone Beach at last, because it is a scenic spot, so the accommodation may be more expensive. I might as well live near Dalian Railway Station.
In short, I suggest you take your mother to other places ~ such as Shengya Sea World, Tiger Beach polar museum, Zoo and so on.