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The Jurassic World Lagoon was a lagoon in Isla Nublar created to house Jurassic World's Mosasaurus. It contained a total of 3,000,000 gallons of water.[1]


The Jurassic World Lagoon was created around during the construction of Jurassic World[2] where a Mosasaurus was placed there.[3] An aquarium was built around it to allow the visitors to have a safe close look at the Mosasaurus residing in the Jurassic World lagoon in the Underwater Observatory. Visitors could also view the Mosasaurus by attending the Mosasaurus Feeding Show by sitting in a tribune above the lagoon. The tribune would then descend so the attendants could see a full view of the titular Mosasaurus.[3]

During the Jurassic World Incident, some of the park's Pteranodons snatched Jurassic World employee Zara Young and dropped her into the Jurassic World Lagoon, where she and one of the Pteranodons harassing her were both eaten by the Mosasaur.

At the end of the battle between the Indominus rex, the park's veteran Tyrannosaurus rex, and Blue the Velociraptor, the Mosasaurus beached itself to catch the hybrid in its jaws and dragged it to the bottom of the lagoon, thus killing it and saving the park.[3]

Months later, a submarine was sent down to the bottom of the lagoon to retrieve one of the bones from the I. rex. Although they succeeded, sending the bone to the surface, the sub was attacked and sunk by the Mosasaurus, who also leaped out of the water and ate mercenary Jack as he clung to the rescue ladder of a helicopter flying over the lagoon and then escaped out the lagoon gates (left open for the sub) into the open sea.[4]



  • There is a similarly named location called the "Jurassic Lagoon" located in the Isla Nublar Adventure Park that visitors who purchased the Adrenaline Package can bungee jump over.[5]
  • It is unsure what kind of "proto-aquatic creatures" the Jurassic World map refers to. It is possible that these creatures could simply be prehistoric fish as the "Play" page of JurassicWorld.com there is a photo of some fish in the section about the Underwater Observatory[6] and the icon for the observatory is of a fish skeleton.


  1. Jurassicworld.com - Mosasaurus Feeding Show. Retrieved from JurassicWorld.com
  2. In the Jurassic Park brochure and maps of Isla Nublar from 1993 show no evidence of the lagoon's existence prior to Jurassic World's construction. Unless the lagoon's existence is a retcon, it is safe to conclude that the lagoon was created during the construction of Jurassic World.
  3. 3.0 3.1 3.2 Jurassic World
  4. Jurassic World: Fallen Kingdom
  5. Jurassicworld.com - Adrenaline Package (2015)
  6. Jurassicworld.com - Play Retrieved from http://www.jurassicworld.com/plan-your-visit/play/