The 'movement' is already included in 'surfing' in that idiom ('to go + -ing'); that is why #1 is unacceptable except in casual English. 'Surfing' is the terminus of the movement, not 'the beach'. Does that answer your concern?
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Hans51"Jack climbed up the hill with all his gear but didn't go hang-gliding because he was too afraid"? Considering meaning, "go hang-gliding" implies just "do" and we cannot infer meaning of "go" there, right?I guess it depends on how you look at it, but yes. I see it as he did the 'go' part but did not complete it (by 'hang-gliding').