If you are traveling with gradeschoolers and have time for just one of the Riviera Maya’s eco-adventure parks, choose this one. Besides swimming with dolphins (reserve ahead) and splashing in natural pools, you’ll view turtles, tapirs, flamingos and jaguars; walk through a bat cave and butterfly aviary; and get a diver’s-eye view of tropical fish with Sea Trek, (don a helmet with pumped in oxygen) or Snuba. (Oxygen tanks float above you on a raft.) Avoid days when the cruise ships are in port, or arrive in the afternoon (when most cruisers depart), and stay for the evening shows. After watching the demonstration of the ancient Mesoamerican ball game Pok-Ta-Pok, in which players use their hips — not hands — to send a ball sailing through a hoop, we finally understand the game. The Mexican folkloric show features songs and dancers in colorful regalia.