Submarine Explorer 1

The Submarine Explorer 1 is a submarine built at Captain Stern's shipyard in Slateport City. An evil organization (Team Magma in Ruby, Team Aqua in Sapphire and Emerald) tried to steal the submarine's plans twice before the submarine could be built.

After the submarine is completed, Stern reveals that its purpose is to explore a cavern underwater on Route 128. However, the same organization who tried to steal the submarine's plans end up stealing the finished product and taking it to the cavern themselves. The only time the submarine is visible during the game is when it is parked in the entrance of the Seafloor Cavern, while the thieves are inside. Inside the Seafloor Cavern, one of the team grunts remarks that the submarine is "brutal as a ride" because of its small size. The submarine is not seen again after the player clears the Cavern of the resident team.

In the manga

In the Pokémon Adventures manga

Spoiler warning: this article may contain major plot or ending details.

In Pokémon Adventures, two parts of the submarine (named the Kaien 1 in the Chuang Yi translation) are featured: the submarine's "heart", manufactured by the Devon Corporation, and the submarine itself, designed by Captain Stern. Team Aqua steal the submarine's heart, which enables the submarine to travel deep underwater, in VS. Ludicolo, while Team Magma obtain the submarine itself in VS. Slugma II. This eventually leads to the two team leaders forming a pact to join forces temporarily in VS. Walrein and heading to the Seafloor Cavern together with the complete submarine in VS. Whiscash. Later, in VS. Armaldo, the submarine breaks apart from being sent deep underwater without its heart component, and the wreckage floats to the surface. This is the last that is seen of the submarine.

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Hoenn
Settlements Littleroot Town • Oldale Town • Petalburg City • Rustboro City • Dewford Town • Slateport City • Mauville City • Verdanturf Town Fallarbor Town • Lavaridge Town • Fortree City • Lilycove City • Mossdeep City • Sootopolis City • Pacifidlog Town • Ever Grande City Battle Frontier • Battle Resort Routes 101 • 102 • 103 • 104 • 105 • 106 • 107 • 108 • 109 • 110 • 111 • 112 • 113 • 114 • 115 • 116 • 117 • 118 119 • 120 • 121 • 122 • 123 • 124 • 125 • 126 • 127 • 128 • 129 • 130 • 131 • 132 • 133 • 134 • Underwater Landmarks Petalburg Woods • Rusturf Tunnel • Island Cave • Granite Cave • Abandoned Ship • Sea Mauville • Oceanic Museum Seaside Cycling Road • Trick House • Mauville Game Corner • New Mauville • Trainer Hill • Desert Ruins • Mirage Tower • Fiery Path Jagged Pass • Mt. Chimney • Desert Underpass • Meteor Falls • Weather Institute • Scorched Slab • Ancient Tomb • Safari Zone • Mt. Pyre Lilycove Museum • Shoal Cave • Team Aqua Hideout • Team Magma Hideout (Lilycove • Jagged Pass) • Mossdeep Space Center • Seafloor Cavern Cave of Origin • Mirage Island • Sky Pillar • Victory Road • Pokémon League • Sealed Chamber • Artisan Cave • Altering Cave • Southern Island Marine Cave • Terra Cave • Contest Hall • Battle Maison • Battle Tower • Battle Tent • Secret Islet • Secret Meadow • Secret Shore Mirage spots Mirage Caves • Mirage Forests • Mirage Islands • Mirage Mountains Crescent Isle • Fabled Cave • Gnarled Den • Nameless Cavern • Pathless Plain • Trackless Forest Access to Birth Island • Faraway Island • Navel Rock • Sky

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