Sea ( location ) The sea , also called ocean , is a recurring terrain type on the world map in the " Final Fantasy " series . It is a feature in most maps and cannot be traveled on without use of another vehicle , such as a boat , a canoe , or a submarine . Many vehicles that can only travel on certain depths , for example , the canoe and buggy , can only travel over shallow s , while various types of advanced chocobo can travel over deeper water , but not the entire ocean . The sea is used to separate continents and keeps the player from progressing to later parts of the game . An example of this is in the original " Final Fantasy " where the player starts limited to Cornelia and the Chaos Shrine . The player must complete the events of the Chaos Shrine dungeon to trigger the finishing of the Drawbridge to bridge the continents leading to further areas . Sometimes enemies can be fought in the sea . In the earlier entries of the " Final Fantasy " series , players would get into random encounter s when traveling over the sea in a boat . These encounters can still be escaped from . Notable world maps lacking seas include the Underworld and Moon from " Final Fantasy IV " . The former uses lava as a replacement . Appearances . " Final Fantasy " . The only way to travel by sea is via the pirate ship , obtainable by defeating the pirates at Pravoka . At first the player can only sail between the Cornelia , Pravoka and Elfheim in the inner sea , but once the Nitro Powder is used to clear a new passageway the player can sail through all deep waters . Random encounters can occur while on the sea , but they are not as frequent as on land . " Final Fantasy III " . The player can travel by sea with the " Enterprise " , and underwater after the " Nautilus " is enchanted by Doga . " Final Fantasy V " . Random encounters can occur while the party travels on the sea by boat . " Final Fantasy VII " . The sea separates each continent . The ways to cross the sea are using the Tiny Bronco , " Highwind " , submarine , Cargo Ship from Costa del Sol or a gold chocobo . The Bottom of the Sea is explorable via the submarine where one can find the sunken Gelnika and Emerald Weapon . The Junon Underwater Reactor can also be seen , but not entered , from the sea , as going through Junon is the only way to reach it . " Final Fantasy VIII " . The sea has few ways to cross it : Balamb Garden , once it becomes mobile , and the " Ragnarok " . A SeeD Assault Boat is used during the Siege of Dollet . Chocobos can cross shallow water and are the means of reaching the " Ragnarok " during endgame . The White SeeD Ship appears as a location in the sea during a storyline event . " Final Fantasy IX " . There are several boats and airships to explore Gaia with : the " Blue Narciss " , " Hilda Garde I " , and the " Hilda Garde III " , and the " Invincible " . The " Prima Vista " , the " Red Rose " , used as a warship by Queen Brahne , the Alexandrian Fleet , the " Cargo Ship " , and " Hilda Garde II " also appear in the story but cannot be controlled by the party . The party can also cross the oceans with Choco who learns new abilities to cross terrain by visiting Chocobo ' s Dream World . " Final Fantasy X " . At Besaid ' s beach the water can be swam in , but not far from the shore . Baaj Temple in the middle of the ocean can be swam in as well . In Kilika and other locations the ocean is simply a background feature . The boss Geosgaeno is fought twice underwater , once at the start of the game and once after the player acquires the airship as an optional fight . The sea is otherwise seen on the map when selecting a location for the airship . Oceans make up a considerable portion of Spira and Tidus ' s Zanarkand is located far out in the sea . The seas are not roamed much because of the threat of Sin . To travel between the islands the chocobo - powered ships " S . S . Liki " and " S . S . Winno " are used . " Final Fantasy XII " . The sea appears in a variety of places . Dalmasca Estersand has a river that can be crossed midway through the game and has a fishing minigame once the player has acquired a fishing rod . The Ogir - Yensa Sandsea and Nam - Yensa Sandsea are characterised by sand that moves like water , hence their name . The Ridorana Cataract and the Pharos have sea around them , Reddas sent fleets of boat s to the Pharos at Ridorana but they were all destroyed by the waves around the Ridorana Cataract . The Balfonheim Port has sea around it , but is used as the background . " Final Fantasy XIV " . Being on an island , the La Noscea region is surrounded by sea . Some instanced duties have players fighting on - board a ship . The primal Leviathan is fought on a barge floating out at sea . " Final Fantasy Tactics " . There ' s a terrain tile called Sea in the PlayStation version , but the newer translations change it to Ocean . These tiles appear on the battlefield maps of Dorter Slums , Brigands ' Den , Port City of Warjilis , random battles in Fovoham Windflats , and Orbonne Monastery . A Geomancer standing on the Ocean terrain tile will use Torrent to deal Water - elemental damage with a chance of inflicting Toad to any enemy units within five squares . " Final Fantasy Adventure " . Chocobot can go on water , allowing it to carry Sumo across rivers and the ocean . On the ocean , the Sea Dragons and Sahagins populates the area . Chocobot can access the ocean from the wooden piers found on coastal areas . Etymology . The , the world ocean , or simply the ocean , is the connected body of salty water that covers over 70 percent of the Earth ' s surface .