I like to surf in my free time.
I do as well.  I normally sure in the ocean, but sometimes I surf in rivers
Do you have to be standing on the board while riding a wave to be considered surfing?
Not at all.  A lot of people prefer body boarding, which you can do by laying on the board or just dropping down to one knee
Yes, i'm new to surfing, so I only surf lying down. What can you tell me about kite surfing?
There are a bunch of different styles.  There is freestyle, speed, course racing, among others.  I really enjoy it, but have only done it a couple of times.
What is the largest wave that a surfer has ridden?
Garrett McNamara
Garrett ‘GMAC’ McNamara (born August 10, 1967) is an American professional big wave surfer and extreme waterman known for breaking the world record for largest wave ever surfed at Nazaré, Portugal, surviving a monstrous wave at Jaws, and riding tsunami from calving glaciers in Alaska.
Biography.
Biography Early life.
McNamara was born on August 10, 1967 in Pittsfield, Massachusetts and spent much of his childhood in Berkeley, California. In Berkeley, McNamara, and his younger brother Liam McNamara,
boarding, when a surfer rides a wave on a bodyboard, either lying on their belly, drop knee, or sometimes even standing up on a body board. Other types of surfing include knee boarding, surf matting (riding inflatable mats), and using foils. Body surfing, where the wave is surfed without a board, using the surfer's own body to catch and ride the wave, is very common and is considered by some to be the purest form of surfing.
Three major subdivisions within stand-up