Island's beach converts from beautiful to terrifying

I received fascinating data about the beach located in a small island in South Korea. The sand is incredibly soft like fresh breadcrumbs and the water highlights various shades of green colors. The islanders would chill on the limpid water surface, feel the tender white sand with their toes and enjoy the light breeze. Fishing boats were scattered on the horizon. However, later my scanner highlighted that there are deadlier aspects of the island that are completely hidden from plain sight. Sharp rocky shores and corals heave beneath the cool greenish blue waves. Many fishing boats have been trapped and drowned. According to locals, this is due to high tides that come unexpectedly when sunny on the beach side. A beautiful but improbably vigilant island it has proven to be.