Jaws 3 (1983)

Description: Everyone at Florida's Sea World is thrilled with the new "Undersea Kingdom," a maze of underwater plexiglass tunnels that permits visitors to get closer to marine life than ever before. The opening ceremonies include many important guests- and one uninvited baby shark who accidentally enters the park's lagoon through a faulty sea gate and subsequently dies. The young shark's 35-foot mother soon follows her offspring, creating the most horrifying tale of terror ever filmed in the water.