I always believed in sea ponies.
It was your average Saturday at the beach. Well, except that I would've sworn to anyone that I saw something swimming in the water that looked almost like a pony, but with fins. Nobody thought much of it, of course. My eyesight never was that great, so even I figured it was just a fancy water toy.
I decided that I was going to teach myself to swim today. I saw other ponies doing it before, so how hard could it be? My parents told me I needed to be bigger before I could learn to swim - "You're not big enough to float in the water yet, Cerulean Spark!" - but I couldn't understand how being bigger made it easier to float in the water.
As soon as we arrived, I darted away from my parents and headed straight for the pier. If I was going to learn to swim, I was going to learn to swim well. I jumped off the farthest edge and into the water, which tasted saltier than the water at my house. I started kicking my hooves in the water to keep myself up.