Sawada, Irabu, Miyakojima City (Miyako Island)
Designated a natural monument by the Japanese government, tori-ike (lit. path lake) is known as a mystical lake harboring myths featuring mermaids and other sea creatures. Tori-ike consists of two lakes with 75-meter and 55-meter diameters and depths of 45 and 25 meters, respectively. The two lakes are interconnected under water and also linked to the ocean. This is a unique location where fresh and salt waters mingle, making it an ideal diving spot.