bigger than seaworld jakarta, but it's quite good for a tourist destination in KL. oh yeah just buy it at traveloka, only 160 thousand because I haven't bought the one for local cityzen, but you have to be good at Malay. just scan it when you enter, if you buy it at the counter the price is almost double. if in the aquarium it's just okay. not too many marine/water biota. but it's quite good because the price is only 160 thousand.