The track, which is a "diversion" from the Kiama Coastal Walk through the former quarry's unusual basalt landscape, was endorsed by last year following representations from veteran Kiama councillor Warren Steel, who believes the walk has the potential to be a great tourist attraction.

It was Cr Steel who had suggested the track be named "Thunda" as the name Bombo is an Aboriginal word for "thunder".

However, there was conjecture among Kiama councillors as to whether Bombo meant thunder or was rather named after the Aboriginal leader Thumbon.

With that in mind, Cr Kathy Rice suggested the name be referred to the council's streets and reserves naming committee for determination.

Cr Rice also wanted the name to be spelt correctly, but Cr Neil Reilly backed "Thunda", saying it was "a marketing device".

Cr Steel knocked back the request to involve the naming committee saying it was an area - not a street or a reserve.

Sydney Water occupies part of Bombo headland for a sewage treatment plant that opened in 1988, the rest being in the hands of the Department of Planning and Infrastructure, but under the control of Kiama council.

Cr Steel said it was important the track have a name.

"We need signs there as a matter of urgency," Cr Steel said.

He hoped the track, a basic trail marked by blue posts, would one day become a sculpture trail.

Cr Steel also wants a lookout to be built on the northern side of the old quarry, which has spectacular views of the quarry, ocean and Kiama.

"Seventy per cent of Kiama people don't know this track is here," Cr Steel said.