A Surf Jump (Japanese: なみまじゃんぷ, Wave Jump) is a Turbo Swim used out of a surface of water. It can be performed by Swimming out of the water by holding the up button on the D-pad and the B button (A button in the Game Boy Advance games or Densetsu no Starfy 4).
Description from The Legendary Starfy
"Leap into the sky when you surface out of the water with this move."
- The Surf Jump and the Spin Jump share the same official Game Boy Advance artwork, even though the artwork depicts a Spin Jump.