With an enormous sign at the western end of the beach, it’s impossible to miss Cofresí’s main attraction, Ocean World . The main attractions are the sea lions, dolphins, sharks and manta rays, the aviary, and the tiger pool and show. You can also swim with the dolphins or the sharks. It may all sound jolly but the practice of keeping dolphins in captivity, and especially interacting with them, has received sharp criticism from animal welfare groups in recent years. There are several restaurants, a disco, and a casino on site.