go all the way to the right and when you see the satau put your mouse over the dark blue part of the water click down and get to the five headed monster jump on each head and get the scale
if you mean in mythology island, you dont play a tune for the hydra thats only for the dog you have to jump on their heads if you need help just go to youtube and type in poptropica cheats mythology island
You click the darker water underneath the statue of Poseidon on the seahorse.
you have to go to that water place with bird thing and snatch the pomogranate out of the tree
Its in the clam in the water maze near the hydra's cave.
In Poptropica's Mythology Island, you can refill the bag by visiting the fountain in the town square. Simply approach the fountain and interact with it to fill your bag with water. This water is essential for solving puzzles and helping various characters throughout the island. Make sure to refill whenever you need more water for your quests!
In Mythology Island on Poptropica, she instructs you to play the colors blue, green, red, and yellow on the flute. These colors correspond to the four elements: water, earth, fire, and air. Playing them in the correct order helps you progress in the game.
To wash off graffiti on Poptropica's Mythology Island, you need to obtain the water from the Sacred Pool in the Grove of Temples. Once you have the water, use it to clean the graffiti on the walls in front of Herc's Hero Hut to progress in the game.
swim to the top
Defeat the hydra who is found in a cave in the bottom left of poseidon's water maze.
On the island Old Poptropica on the water tower.
You just have to jump on the Sphinx back and allow the water to flow. It's not a riddle she just wants you to water the rose and in exchange she will let you keep it.
Go back inside and save more people!