h2o

A person walks a dog along a concrete pier extending over calm water under an overcast sky, with other people and a distant structure visible in the distance. A large, translucent jellyfish with long, trailing tentacles pulses through dark water, its bell contracting and expanding to propel it forward. A seagull stands on a wooden railing overlooking the water, flapping its wings and shifting its weight as it balances. A person's hand splashes into a swimming pool, creating a large, upward burst of water that erupts into the air.