I love surfing!  The ocean is awesome.
I have never done it.  I see that it is surface water sport in which the surfer rides on the deep face of a moving wave
yes.  It is very challenging - body boarding is definitely easier
apparently you can surf in either the ocean or even lakes or rivers in the form of a standing wave or tidal bore
i did not know you could surf in lakes!
You can also surf with artificial waves such as those from boat wakes and the waves created in artificial wave pools
That is cool - I have seen wave pools in water parks
The term surfing refers to the act of riding a wave regardless of whether the wave is ridden with a board or without a board, and regardless of the stance used.