Where Do You Find the HM Surf in Pokemon Platinum?
Pokémon Platinum — an improved version of Pokémon Diamond and Pearl — was first released for the Nintendo DS in 2008, but the game remains popular today.
Pokémon Platinum has many Hidden Machines (HMs) that are used to teach Pokémon moves that they may not learn through leveling up. One of the hardest to find is HM03 Surf, a move that is ideal for water-type Pokémon.
In short, HM03 Surf is found in Celestic Town after the player defeats the Galactic boss, Cyrus. Cynthia’s grandmother will give it to the player inside the ruins.