Things You'll Need
Instructions
Go to Lilycove City and walk west on Route 121. Walk past the Safari Zone and cut down the tree that blocks the road.
Follow the path down to the dock. Use Surf at the water's edge and swim south on Route 122.
Surf around the large island and exit the water when you see a small piece of grassy land.
Walk around on the grassy land until a wild Pokemon appears. If it is Vulpix, weaken it with a water-type move. Throw any type of Poke Ball at Vulpix to catch it.