Okuike (おくいけ)is a small lake with an adjoining reservoir lake called the "Okuyama Chosuichi". It is surrounded by a high-class residential area and is located in Ashiya, a city in the Hyogo Prefecture of Japan. It is close to the major cities of Kobe and Osaka, and is part of the Kansai region. Okuike is located on a height of approximately 500–600 meters above sea level on the Southern aspect, and is located towards the Eastern part of Mount Rokkō. The "village" of Okuike is home to around 730 properties and is often referred to as the "Beverly Hills of Japan". It is said to have an excellent natural landscape in its residential areas due to regulations such as Japan's "Mansion Ordinance" and the Natural Parks Act. Due to these, buildings can only be constructed on existing plots of land and no subdivisions can occur. The altitude of Okuike allows it to have far reaching views, sometimes of 100 kilometers across Osaka Bay, towards the Nara prefecture, the Kii Mountains, the Wakayama prefecture, Awajishima, Shikoku, Kansai International Airport, Osaka, Kobe, the Akashi Kaikyō Bridge and the Seto Inland Sea National Park. From certain parts of Okuike, it is possible to spot at least 6 prefectures: Hyogo, Osaka, Tokushima, Kyoto, the Nara Prefecture, and the Wakayama Prefecture. Okuike is accessible through the tolled Royu Parkway/Driveway.