I have never been surfing but I'm interested to try it sometime!
Surfing is a water sport in which the wave rider ,or surfer, rides a moving wave.
What else would I need to know before attempting to surf?
Well you there are different types of surfing such as Big Wave Surfing.   Big wave surfing is surfing in which experienced surfers paddle onto or are towed onto waves of at least 20 feet high on surf boards know as "guns or towboards".   SOunds kinda scary if you ask me.