Killalea will become the fifth NSW surfing reserve behind Cronulla, Crescent Head, Lennox and Angourie.

For Chris Homer and other members of the Killalea National Surfing Reserve Committee the dedication will be the end of a journey that began two years ago.

Mr Homer said the declaration of surfing reserves meant that surfing had been accepted as a mainstream sport, one that is respected and accepted.

However, this declaration was just as much about the magic of the Killalea area.

Mr Homer said although The Farm and Mystics might not have the fame or links to professional surfing of other reserves, it rated highly in several criteria such as quality of surf and the environment.

"Part of the cultural story here is when you surf in the beautiful environment that surrounds you, you feel you could be anywhere, not on the edge of a city," Mr Homer said.

"That is unique and not many cities have that."

Mr Homer said the declaration would confirm Killalea as one of the "marketing jewels of Shellharbour".

As for the declaration encouraging tourists to drop in on the waves of local surfers, Mr Homer concedes surfers are territorial.

"But The Farm is such a general surf spot. It is accepted that you will find all sorts of people surfing here ... that is partly where its iconic surf status comes from."

The reserves covers 500m out to sea from the average high-tide mark at The Farm and extends southwards 3.5km to include Mystics.

A booklet detailing the surfing history will be released on June 6 with Lands Minister Tony Kelly and the Killalea family expected to attend.