The owner of KrolfButikken ApS is married into the Henriksen family, who invented the Danish version of krolf, has experience with krolf since 1980 and experience with construction of krolf equipment since 1990.
Furthermore, it is to a large extent the owner who is the father of all krolf in Denmark, in addition to the Henriksen family.
It is also the owner who wrote down the first unwritten rules and had them further developed, wrote the team rules, organized the first competitions and started the Danish Krolf Union.
In short, krolf is
Half croquet, half golf and all fun!
and otherwise I can recommend taking a closer look at the Danish Krolf Union's pages, where you can find almost everything about krolf.
And a smaller site in English here: http://www.krolf.dk/gb