A man dressed in a surfing shirt and blue and white shorts skillfully guides his yellow board with its multicolored sail over the crest of an ocean wave, flipping over in the process.
a man surfs
The man surfs because he guides his board over the crest of an ocean wave.
Surfing requires appropriate attire (surf shirt and shorts) and a board. One cannot surf with a board.
Guides board over ocean wave implies surfs.