I had tried to render this in fame by frame mode but there is 900 frames and in cycles render at a setting of 10 not a high setting I was only getting two frames a minute granted the image was good but it was going to take 450 minutes just too long So made this in Eveev render in to H264 video it took under 20 minutes better time but cycles is far better some day if the river don't rise and someone is on hand to keep the tea coming I think I will have to re-render for glasses Oh! the model prop ie the roller coaster is from Blender shop it is quite old but the detail is very high The version of Blender is 4.5.1 animation is 37 seconds