De or het surfsport?

The correct Dutch article is:

de surfsport

How to use surfsport

the surfsportde surfsport
this surfsportdeze surfsport
that surfsportdie surfsport
our surfsportonze surfsport
your surfsportjouw surfsport
every surfsportelke surfsport
which surfsport?welke surfsport?
a big surfsport / the big surfsporteen grote surfsport, de grote surfsport