Boundary Islet Diving is located on Fenjiezhou Island (also called "Boundary Islet") in the coastal waters just off the east side of Hainan Island in Hainan's Lingshui Miao Autonomous County. Here the ocean waters are clear with high visibility; the beach is soft and white, and there are abundant ecological marine resources such as outdoor aquaria and coral museums. This is a rare island for diving and for seeing Hainan's ornamental sea creatures. When diving, visitors can enjoy the sights of seals, sea lions and dolphins performing. This is the best way to get up close and personal with the world of animals beneath the sea.