Jeju Volcanic Island and Lava Tubes, South Korea. The island also contains an erotic sculpture garden called "Love Land". http://english.visitkorea.or.kr/enu/SI/SI_EN_3_4_15_1.jsp
JEJU VOLCANIC ISLAND & LAVA TUBES, South Korea: is a World Heritage Site in South Korea. Jejudo volcanic island is 130 kilometers from the southern coast of the Korean Peninsula. It is the largest island & smallest province in South Korea. The crater Baengnokdam, & the lake in it, at the peak of Hallasan Mountain, formed over 25,000 years ago.
Jejudo is a volcanic island, 130 km from the southern coast of Korea. The largest island and smallest province in Korea, the island has a surface area of 1,846 sqkm. The island contains the natural World Heritage Site Jeju Volcanic Island and Lava Tubes. A central feature of Jeju is Hallasan, the tallest mountain in South Korea and a dormant volcano, which rises 1,950 m above sea level.