I just spent last Thursady at Bush gardens with a friend. The park was not crowded, and its real nice. They have a few new shows which are GREAT. Make sure you see the Circque style show, its awesome.....
Rides are great, and full price adult admission is $53.00 for a day, but you can get coupons at Wendy's I think it is and get a few bucks off.
Its worth looking for a discount, but the full price admission isn't bad, especailly if you can spend the whole day. They should still be having their summer Nights promotion which keeps the park open til 10:30 Pm