|"While we're stuck waiting, why don't you tell us who's really under there?"
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The Ninjago City Aquarium is a large aquarium located in New Ninjago City.
Dareth and the Wu's Academy students are going to a field trip to Ninjago City Aquarium to see the Electrocobrai and the sharks while the ninja are looking for the hard drive. The Stranger sneaks in and steals some Electrocobrai. Then, a shark escapes, but Dareth scares it away, using his knowledge of the language of the sea.
After the ninja captured a Fangfish that was responsible for terrorizing a coastal village, they intended to send it to the Aquarium. It was placed in a tank and was presumably transported there.
- There is a shark symbol outside on the aquarium, and there is a globe in the back, which probably is a reference to the Hayden Planetarium in New York City.