Last year, the Queenstown-based tourism giant proposed the construction of an "internationally renowned visitor destination" above Kilvey Hill at the back of Swansea, South Wales.
The company, known for its gondolas in Queenstown and Rotorua, has rolled out similar ventures in Singapore, two in Canada and another two in South Korea — and recently opened a luge in Kuala Lumpur, Malaysia.
The attraction, estimated at £4 million ($NZ8.3 million) is part of an almost £40m plan for the town, which includes a ski-style cable car with chair lifts, luge rides, a sky swing, walking paths and a two-way zipline.
It will also include food and drink outlets and picnic areas.
The plan is backed by the Swansea Council, which has set aside £8m to help deliver the project.
Last month, the planned attraction was met with opposition from the Swansea community, with about 300 people gathering on Kilvey Hill to oppose the proposal.
In a statement from British conservation charity Open Spaces Society, general secretary Kate Ashbrook said she was calling on the council to "treasure the hill, not trash it".
"[Kilvey Hill] is immensely valuable as a tranquil green space right on Swansea’s doorstep, a part of the city which is lacking in open spaces," she said.
"The woods are full of birdsong, and we can roam freely over this hillside.
"Skyline’s development will destroy all this."
The Welsh government had also pledged £4m towards the plan, subject to conditions.
Skyline Enterprises chief executive Geoff McDonald said the company challenged the assertion that the Skyline development would "destroy" the scenery of Kilvey Hill.
"We believe the development will create an amenity accessible for all Swansea residents and those who are visiting, and it will add to the attraction and utilisation of Kilvey Hill," he said.
The development would only take up 10% of the hill space, so the vast majority of the site would remain unchanged, he said.
Skyline’s plans featured ecological conservation strategies to ensure a net-positive impact on biodiversity at the site, and included extensive ecological studies and mitigation procedures.
The public feedback had made Skyline rethink certain design elements, including repositioning the sky swing, relocating luge tracks from a section of woodland and introducing a children’s adventure playground.
It had also hosted a three-day public consultation event, at which support of the development had been "overwhelming".
"Alternative views and perspectives are important, so we welcome the feedback."
Skyline expected to know the outcome of a formal planning application to the Swansea Council by September this year, he said.