Ohshima

Ohshima is a small, uninhabited island located in the Seto Inland Sea of Japan. It is part of the Kagawa Prefecture and is known for its unique geological features and historical significance. The island is approximately 800 meters long and 300 meters wide, with a maximum elevation of about 10 meters above sea level. Ohshima is composed primarily of limestone and is characterized by its steep cliffs and rocky terrain.

The island's name translates to "Great Island," although it is relatively small compared to other islands in the region. Ohshima is part of the Seto Inland Sea National Park, which was established in 1934 to protect the unique marine ecosystem of the Seto Inland Sea. The park includes Ohshima and several other small islands, as well as the surrounding coastal areas.

Ohshima is home to a diverse range of plant and animal life, including several endangered species. The island's limestone cliffs provide habitat for a variety of birds, while the surrounding waters are rich in marine life. The island is also known for its unique geological formations, such as the "Ohshima Stone Forest," a series of limestone pillars that resemble a forest of stones.

Historically, Ohshima has been used for various purposes, including as a place of exile for criminals and political dissidents. The island's remote location and harsh conditions made it an ideal place for such purposes. Today, Ohshima is largely uninhabited and is accessible only by boat or on foot during low tide. The island is popular among birdwatchers and nature enthusiasts, who visit to observe the unique wildlife and geological features of the area. However, due to its remote location and the potential for strong currents, visitors should exercise caution and follow safety guidelines when visiting Ohshima.