Fantasmic is a night time show on the rivers of a america. The balacany seating is in the gallery and cost equal to the price of an adult admission for both children and adults (a little pricey in my book). You do not have to book anything for this show unless you want to sit in the balcony or reserved seating. It is however very popular and many pick out the seats around the river more then 4 hours in advance of the first showing.