From Bulbapedia, the community-driven Pokémon encyclopedia.
Coral Sea (Japanese: サンゴのうみ Coral Sea) is a location in Pokémon Ranger: Guardian Signs.
It is located south of Renbow Island and can be accessed by riding Lapras from Lapras Beach. Coral Sea is made up of four areas, the deepest area being very dark with very little visible except for yellow lights from Chinchou and red lights from Sharpedo eyes. The more Chinchou the player has, the larger the light area around them becomes. When the player first enters Coral Sea they will be required to find a UFO which gives off the same red glow as the numerous Sharpedo. You can go here anytime after getting the UFO by riding Lapras to the Coral sea. There are some missions you have to go here to complete.
Pokémon