Respect the ocean. It doesn’t care about your photo. Warning: Reynisfjara Black Sand Beach, Iceland. We watched parents ignore the danger and a young girl get swept by a sneaker wave. She made it out with a scare. Many others haven’t been as lucky. These waves can reach far up the beach in seconds and knock adults off their feet. Stay well back from the water’s edge, never turn your back on the sea, and keep children (and yourself) at a safe distance — especially during high seas or storm warnings.