As each head comes down, jump on it. Be careful, the heads will wake up.
the labrinth ( la-brinth)
you have to pass the Greek gods test
you go past the grove of temples and jump of the cliff
The Hydra is a six headed beast on Poptropica.
you can't
you have to jump on all 5 of the hydra's heads and then click on the hydra and you will get the scale
Jump on their heads.
When it tries to bite you, jump, and land on its head.
Defeat the hydra who is found in a cave in the bottom left of poseidon's water maze.
Move your mouse over the neck of the hydra and wait till it makes the pointing finger. Click
To get the Hydra scale on Mythology Island in Poptropica, you need to defeat the Hydra by using the arrows to hit its heads. Once you successfully defeat the Hydra, one of its scales will drop. Approach the scale to collect it, and make sure to explore the surrounding area for any additional items or tasks you may need to complete on the island.
It's an underwater cave at Poseidon's "castle"