Your walking along the water, you walk into the water a bit, you take off your shirt and change into your bord shorts, you dive into the water. You feel a finger brush against your bottom, you turn around but you see nothing, you turn around to see a white haired man, with a sort of sharkish fish tail, a crown on his head

he pulls you under and takes you to a shipwreck, there was no air bubbles, he links his mouth into yours and blows, giving you air so you don't drown.