De or het surfschool?

The correct Dutch article is:

de surfschool

How to use surfschool

the surfschoolde surfschool
this surfschooldeze surfschool
that surfschooldie surfschool
our surfschoolonze surfschool
your surfschooljouw surfschool
every surfschoolelke surfschool
which surfschool?welke surfschool?
a big surfschool / the big surfschooleen grote surfschool, de grote surfschool