The long stretch of sand is (almost) as flat as a pancake. Small waves crash in the distance and leisurely withdraw from the shore. Beige-colored crabs scurry along, visible one moment, out of sight the next. A couple of starfish lie still on the shore. Dozens of hungry plovers dig feverishly into the sand to find their meal. High up in the sky, a sea eagle flies home victoriously, with a struggling serpent held firmly in its talons.