How to obtain Mew

Obtaining Mew

To obtain Mew, first complete the Pokémon League and reach the Battle Frontier. Buy the Old Sea Map for 100,000 Poké Dollars at the shop next to the Pokémon Center. Then fly to Lilycove City, enter the harbor and use the map to travel to Faraway Island.

Follow the island's path until you reach a room full of tall grass. Solve the puzzle to find Mew at level 30.