The park is great for those who like walking along nature; at the very entrance of the park there's the dolphin's lagoon, so you'll be able to see them and take some pictures or if you have some extra bucks may be able to be trainer for a day or swim with them.
A few steps from dolphin's encounter you can get into the caleta that's for scuba and snorkeling, a perfect place with really nice water and a lot of reefs.
If you have small children they may enjoy the bees farm, jungle train tour, floating bridge, mo's flight, courage jump stone, and the main attraction, Lazy River. They can get some loops to cross the river or may go swimming and do some snorkeling.
For adults, they have sea trek that is walking along the reef just wearing a helmet and boots, you may feed the fishes, and they'll take you a picture for just $9. It is the perfect place for family fun.