Xcaret is a nature theme park, with several activities.The most exciting of them is floating down the natural underground rivers. You will need to grab a lifevest and you get into the rivers and float through bat filled caves, crystal clear waters and so much more, it's really fun.There is also a Mayan village on the park, where you can learn more about local culture, there is an aviary with hundreds of species of birds, which is really fun, you can also take a little boat to see animal species by a river and there is a huge aquarium which is beautiful.By the beach, there are several other optional activities with an extra cost, like snorkeling, swimming with dolphins, etc.