Inspired by the former 20,000 Leagues Under the Sea walk-through attraction at Disneyland, it is a walkthrough attraction located in Discoveryland that lets guests explore Captain Nemo's submarine and witness the Giant Squid attacking the Nautilus from the Salon. A 2023 refurbishment of the attraction would remove the giant squid animatronic however in favor of projected scenes of various marine life being shown through the Salon's window.