When I went with my family, we got in for free. From what I saw, it is only worth the price if you are there early enough to see the shows and do all the offered activities. The park itsel is not really big and you could see most of the exibits in an hour or 2.
To see all the shows and attractions offered, it will take at least a whole day:
Included in price of admission
Snorkel Reef Pool - Open 9am to 6pm
Dolphin Shows 9:30am, 1:30pm
Bird Shows 10:30am, 2:30pm
Sea Lion Shows: 11:00am, 3:00pm
Shark Show 10:00am, 12:30pm, 2:30pm, 4:30pm
Tiger Photos and Feeding: 10:30am, 12:00pm, 2 pm, 4pm
Available at extra cost:
Dolphin Swim (offered at 8 diffferent times during the day from 10 am to 5pm)
Dolphin Encounter (offered at 8 different times during the day from 10 am to 5pm)
Sea Lion Encounter - available 9:30am, 11:30am, 1:30pm, 3:30pm
Shark Encounter - available 10:00am, 12:30pm, 2:30pm, 4:30pm