It's in the clam near the entrance to the hydra cave. Wait for it to open then swim through the clam to pick it up.
go underwater until you see a giant oyster with a pearl in it's mouth, swim over walk into the mouth to get the pearl
Its in the clam in the water maze near the hydra's cave.
you find it in the giant clam in the water where it says dive. :)
The Hydra is in his underwater lair. Swim out from the beach to the underwater maze, then go right, down, and left to find the Giant Pearl and the entrance to the Hydra cave.
under water
1- a flower from the garden of Sphinx 2- the golden ring of the Minotaur 3- a scale from Hydra 4- a giant pearl from the kingdom of Poseidon 5- a whisker from Cerberus, the guardian of the underworld
you need to collect the following 5 items: 1) a flower from the garden of the Sphinx 2) The golden ring of the Minotaur 3) a scale from the Hydra 4) a giant pearl from the kingdom of Poseidon 5) a whisker from Cerberus, the guard of the underworld.
you will see dots on the statues go i numeric order and then steal the pearl from the mummy
The pearl you need is the giant pearl. Once you use the starfish (from Poseidon's statue in the museum), you can enter the realm and swim through the underwater maze to the cave of the Hydra. Before you enter, get the pearl from just outside the cave.
The scale is one of the 5 sacred items you are collecting. Also the Giant Pearl that is right outside the Hydra cave.
Mirage island is not in Pokemon pearl.
Dive below