There are generally black sand beaches on volcanic islands, Iceland, Hawaii, and Reunion. There are not only ones, but also a small area of 5 kilometers long, adjacent to the picturesque, peaceful and hustle town of l'tang. Maybe everyone will wonder how black sand is formed? Its formation is of course related to volcanism. In ancient times, a submarine volcanic eruption, the sand layer of the seabed turned out of the ground, combined with black lava, coupled with the role of seawater and wind for many years, forcing lava and The soil was turned into zero and finally became the black sand beach that is endless today. From the black sand beach, the South Indian Ocean is endless. Black sand and white waves form a strong contrast in the sun, showing a strong visual aesthetic. The vast black beach stretches along the shores of the hustle and bustle. The clear water gently washes away the black and transparent sandstone. It looks like the black hair of this beautiful girl from Reunion, softly in the sea breeze. Drifting, exudes a charming atmosphere. This is the first time I have seen such a huge black sand beach. I am very excited. I look out at the beach. The beach is yellow under the refraction of the sunset glow, but the black sand beach under the foot is indeed pure black. The gravel is a bit rough, but when it comes to the offshore, the sand is as delicate as a carpet.