waves
with surf you can surf in the water in fire red you can catch a articuno
You need the Fog Badge from Morty the Ecruteak Gym Leader in Ecruteak City before you can use Surf outside of battle.
They allow extra grip (and sometimes ability to raise the nose of the board to jump).
Surf junkey pay only when surfey junk plunk. In cases where turkey punk splash, picky pock will always determine distance specified. Is that clear?