Kehena Black Sand Beach is one of the hidden beaches on the island of Hawaii, and is characterized by its black sand that gives it a charming scene, and it was formed as a result of the lava flow of the beach area in the period of volcanic activity in 1955 AD, it is also known as Dolphin Beach, where you can see it frequently in this area This beach is an ideal destination for those looking for tranquility and charming nature.