What is diamond mountains?

Diamond Mountains is a range of mountains located in North Korea. It is also known as Mount Kumgang in Korean. The mountain range is a popular tourist destination and has been open to foreign visitors in the past. The area is known for its scenic beauty and is home to unique flora and fauna. The mountains are also rich in cultural heritage and have several historical and religious sites, including Buddhist temples and pagodas. In recent years, there have been efforts to develop the area into a modern tourist destination, but access has been restricted due to political tensions between North Korea and other countries.