The image shows a man in a swimming pool wearing a black wetsuit and a snorkel mask. He is holding a black and red snorkeling device in his hand and appears to be adjusting it. In the background, there are two other people in the pool, one of whom is wearing a blue swim cap and goggles. The pool has blue water and there is a white wall and a blue door on the right side of the image. It appears that the man is teaching the other two people how to use the device.