This is pendulum ride. You generally see it in amusement park. This pendulum looks like a boat which has seats for passengers. Once passengers sit securely in their respective seats, the operator put the boat into motion. The boat slowly starts to move back and forth. Passengers begins to shout when the boat starts to swing fast. I have seen it. I think some of them fear the ride. However, I haven never had this pendulum ride.
The photograph is original and taken by me
