Xel-Há is one of the amazing attractions in Cancun, Riviera Maya, Mexico, a natural aquarium park considered the largest aquarium in the world, the perfect place to perform activities in Riviera Maya. If you love nature, there is no better place than Xel-Há to practice snorkeling and water activities like swimming with dolphins, Snuba® (combination of snorkeling and diving) or Sea Trek® (walking under water).