in Area 1 you can see:

1). In Area 1 you can see: the seals.    
1.(ответ: the seals.)
2). In Area 2 you can watch: the dolphins and the whales.    
2.(ответ: the whales.)   
3). In Area 3 you can look: at the crocodiles and the hippos.
3.(ответ: the hippos.)
4).The ticket costs: 50 pounds.                  
4.(ответ: 50 pounds)