no

Softball, baseball, soccer, basketball, football, tennis, ping pong (lol) ,Caster boarding ,Free boarding, Long boarding, Street boarding, Sky surfing ,Street luge ,Snowboarding ,Mountain boarding, Sand boarding ,, Surfing , skateboarding, gymnastics, dodgeball ... go to

http:/en.wikipedia.org/wiki/List_of_sports for more!!

Sand boarding and Dune bashing, where you Drive around in a 4WD

I would have to say that Sand Boarding come together with science by friction of the board and the sand/water. Give me a couple days and I'll give a better answer.

sand boarding, camel riding and dune buggying are all fun activities to do in the desert as long as you have LOTS of water