I have a strong suspicion the clip posted on Youtube is under a bogus account to hide the true identity of the culprits. The pilot deliberately broke all the rules in the book. If CASA tracks them down they would be prosecuted and slapped with a 10K fine. It was totally irresponsible of the pilot to fly any where near 300 meters high next to the Sydney Tower. The Tower is located in the center of the most populated city of Australia To make things worse it was dangerous to fly around the Sydney Opera House with scenic Helicopters buzzing around every 30 minutes. I believe the missions were flown by a skilled pilot with some knowledge of the area. It would have taken more than a few weeks to complete with travel to the Blue Mountains. Please fly safe.