What is the most exciting activity you have participated in?

A developer built an aerial restaurant with a heavy crane, and hoisted it into the air 20 meters high for the citizens to eat. There is a table in the middle of an observation deck on the ground, which can seat 8 people. After rising to 20 meters in the air, citizens can taste fruit cakes and drinks for free, and each group of citizens can experience 10 to 15 minutes. During the lift-off, all diners must be tied to chairs with safety belts. When the table rises, the staff also prepared a large air cushion on the ground to prevent danger.