Wailord (Japanese: ホエルオーWhaloh) is a Water-typePokémon introduced in Generation III that was known as the largest recorded Pokémon at the time. It is over 47 feet long and evolves from Wailmer. In Ruby/Sapphire/Emerald, Wailord is needed to unlock the Regi's Caves along with the help of a Relicanth. One is used by Gym Leader Marlon and Wallace in Emerald.
Wailord is a giant blue Pokémon with small eyes and a huge tail. Its flippers or fins are blue and its underbelly is a light tan color with stripes going up and down. It resembles both a blimp and a whale.
Wailord is the evolved form of Wailmer starting at level 40.