You go to the "Museum of Olympus". Go over to Poseidon's statue. There will be a starfish on his face. Collect the starfish by jumping on it. Then go to his temple and enter. Finally, go to the altar, go to "Items", and press "USE" on the starfish.
His throne room is in the Temple to Poseidon, at the bottom of the lake. But you can only reach it when you have Hercules to move the boulder blocking the entrance. If you accidentally enter the Throne Room by slipping past the rock, you may not be able to get out again unless you have the Transporter Mirror.
In the realm of Poseidon is a beach and what should be a sea, but resembles a lake. The maze and the Hydra cave are below the surface, along with Poseidon's throne room.
To put the hydro scale on the altar in Mythology Island on Poptropica, you first need to obtain the hydro scale from Poseidon. To do this, solve the underwater labyrinth puzzle and find Poseidon's throne room. Once you have the hydro scale, return to the altar in the Grove of Temples and place it on the pedestal to activate the power of the gods.
In Poptropica's Mythology Island, Hades' throne room is located in the Underworld, which is accessed through the entrance in the Tree of Immortality. Once you navigate through the challenges in the Underworld, you will reach Hades' throne room where you can defeat him and complete the island quest.
Place it on the offering stand in Hades throne room.
Hercules will help you reach the throne rooms of Poseidon and Hades. But you need the Touchscreen Mirror from Aphrodite's test in Poseidon's realm.
On Mythology Island, you will meet the god Zeus, and his daughter Athena at the Tree of Immortality. You will find Aphrodite on the beach in the realm of Poseidon. The gods Poseidon and Hades are in their throne rooms, which you cannot enter until you have recovered the 5 sacred items and returned them to the Tree of Immortality.
You can use the mirror by comical bubbles
To move the boulder on Mythology Island, you need to obtain the Golden Apple from Hades in the Underworld. Offer the Golden Apple to Atlas, who will then help you move the boulder so you can access the entrance to the Underworld.
She is at the Tree of Immortality. You must see her before you can access the throne rooms of Poseidon or Hades.
To move the rock in the underworld on Mythology Island in Poptropica, you need to acquire the Titan minotaur's ring. Once you have the ring, go to the cave entrance in the Grove of Temples and use the ring to summon the Titan minotaur, who will move the rock for you.
get the five sacred items, give them to Zeus, go to Hercules, and use the mirror to get there.