A bird's-eye view of Tarras and the wider Cromwell Basin is taking place this week as Christchurch Airport continues to lay the groundwork for a new airport in the area.
The aerial survey is being conducted by consultants for the planned development and is to collect topographical data.
The operation would involve flying a small aircraft at a maximum height of 12,000 feet and conforms to Civil Aviation Authority rules.
The exact timing of the flights are dependent on weather conditions.
The company plans to open a 2.2km runway for jet aircraft with $45 million spent so far on 750ha of land near Tarras.
It has been a point of contention with the community since the plans were released.
Wanaka Stakeholders Group has been a large voice in the opposition, they object to greenhouse gases from extra aircraft traffic and its impact on a pristine environment.