Gyarados is located next to the island in which Piplup and Wynaut are on.
To get to him, you must first visit Bidoof in the Meadow Zone, do what he asks you to, then he will send his friend (a Bidoof) with you to the Beach Zone.
There, you must gather lumber for him to build a bridge to Piplup and Wynaunt. After that, you will need to get more lumber for him and he will build the bridges leading you to Gyarados.
"you cant get manaphy in pokepark" WRONG! if you get every bonus in gyrados's attraction you get manaphy iCRATZ!
Gyrados is in the Beach Zone, but before you can get there, you must defeat Venasaur's Task, and enter the meeting place. Then you have to finish tasks to get to Gyrados.
You talk to Lapras and hop on his back.
You have to beat gyrados's aqua dash with every character exept manaphy then beat her with pikachu and she will be your friend
red gyrados is just shiney gyrados use the shiney code and find gyrados
You find Suicune in route 25 and the Burned Tower.
to get a red gyrados you have 1% of finding a red gyrados and you have to use a super rod to find a red gyrados.
The Red Gyrados drops it. If you already fought the Red Gyrados, you should already find it.
at the lake of rage
Not there
Beach zone
in the granite zone