Where to get thunder stone in HGSS?

Question

Where can I find Thunder stone in Heartgold and Soulsilver (HGSS)

Answer 1

You can get one from lass dana on route 38
Or you could wait until kanto to get one from bills grandpa in the sea cottage. Its also worth 2500 points in the pokeathlon dome on wednesdays, Thursdays and Saturdays
Source

Comments

Thank you very much