Children and adults interested in the sea will love the Mazatlán Aquarium. With over 200 species of fish, including sharks, eels, and sea horses, it is one of the largest and best in Mexico. Next to the aquarium are a playground and botanical garden, with an aviary and a small crocodile exhibit. Staff feed the sea lions, birds, and fish almost hourly, and there is a scuba demonstration in the morning and a bird show in the afternoon.