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 encounters when traveling over the sea in a boat. These encounters can still be escaped from.