Here's a description of the video: The video shows a group of people participating in an exercise class on the deck of a cruise ship. They are barefoot and wearing casual clothing. The group is guided by an instructor who is facing them. The participants are performing a stretching exercise, raising their arms and bending at the waist. The cruise ship deck has wooden planks and there is a pool area visible with blue tiles. In the background, there are other passengers visible along the railings of the ship. The sky is blue with some clouds. There are metal structures overhead that are part of the ship's design.