The star-studded guest list, which is expected to number about 200, began arriving over the last few days. Many of the celebrities — including media mogul Oprah Winfrey, first daughter Ivanka Trump and her husband Jared Kushner, and football star Tom Brady — were spotted leaving Marco Polo airport via taxi boat.

The extravaganza, or so-called “Wedding of the Century,” is expected to cost about $46.5 – $55.6 million, according to Reuters. The wedding’s hefty price tag has been met with criticism from activists, whose threat of disruption resulted in the wedding venue being changed to a more secure location.