Jeju Island , or Jejudo , is South Korea 's most popular holiday island with 10 million visitors in 2013 . It has a population of about 2 million people and the largest number of beaches on earth ( including some that are considered to be among the best ). The island is well known for natural wonders , including waterfalls , white sand beaches and a dormant volcano -- South Korea 's highest mountain -- at the center of the island . In 2013 a luxury Chinese cruise ship was detained for several days in Jeju over outstanding lease payments .
Jeju Island , or Jejudo , is South Korea 's most popular holiday island with 10 million visitors in 2013 . It has a population of about 2 million people and the largest number of beaches on earth ( including some that are considered to be among the best ). In 2013 a luxury Chinese cruise ship was detained for several days in Jeju over outstanding lease payments .